1683425412 has 18 divisors (see below), whose sum is σ = 4255325438. Its totient is φ = 561141792.

The previous prime is 1683425411. The next prime is 1683425413. The reversal of 1683425412 is 2145243861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1683425411) and next prime (1683425413).

It can be written as a sum of positive squares in only one way, i.e., 1153689156 + 529736256 = 33966^2 + 23016^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1683425412² = 5667842235534739488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 46761817 = 1683425412 / (1 + 6 + 8 + 3 + 4 + 2 + 5 + 4 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1683425411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23380873 + ... + 23380944.

Almost surely, 2^1683425412 is an apocalyptic number.

1683425412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1683425412 is an abundant number, since it is smaller than the sum of its proper divisors (2571900026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1683425412 is a wasteful number, since it uses less digits than its factorization.

1683425412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46761827 (or 46761822 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 1683425412 is about 41029.5675336702. The cubic root of 1683425412 is about 1189.5917937035.

The spelling of 1683425412 in words is "one billion, six hundred eighty-three million, four hundred twenty-five thousand, four hundred twelve".