1612704020 has 12 divisors (see below), whose sum is σ = 3386678484. Its totient is φ = 645081600.

The previous prime is 1612703999. The next prime is 1612704029. The reversal of 1612704020 is 204072161.

It can be written as a sum of positive squares in 2 ways, for example, as 1021825156 + 590878864 = 31966^2 + 24308^2 .

It is a super-2 number, since 2×1612704020² = 5201628512248320800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612704029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40317581 + ... + 40317620.

It is an arithmetic number, because the mean of its divisors is an integer number (282223207).

Almost surely, 2^1612704020 is an apocalyptic number.

1612704020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1612704020 is an abundant number, since it is smaller than the sum of its proper divisors (1773974464).

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

1612704020 is a wasteful number, since it uses less digits than its factorization.

1612704020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80635210 (or 80635208 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1612704020 is about 40158.4862762530. The cubic root of 1612704020 is about 1172.6945032790.

Adding to 1612704020 its reverse (204072161), we get a palindrome (1816776181).

The spelling of 1612704020 in words is "one billion, six hundred twelve million, seven hundred four thousand, twenty".