1425414852 has 18 divisors (see below), whose sum is σ = 3603132078. Its totient is φ = 475138272.

The previous prime is 1425414847. The next prime is 1425414889. The reversal of 1425414852 is 2584145241.

It can be written as a sum of positive squares in only one way, i.e., 1186526916 + 238887936 = 34446^2 + 15456^2 .

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

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: 39594857 = 1425414852 / (1 + 4 + 2 + 5 + 4 + 1 + 4 + 8 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19797393 + ... + 19797464.

Almost surely, 2^1425414852 is an apocalyptic number.

1425414852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1425414852 is an abundant number, since it is smaller than the sum of its proper divisors (2177717226).

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

1425414852 is a wasteful number, since it uses less digits than its factorization.

1425414852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39594867 (or 39594862 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The square root of 1425414852 is about 37754.6666254650. Note that the first 4 decimals coincide. The cubic root of 1425414852 is about 1125.4177482650.

The spelling of 1425414852 in words is "one billion, four hundred twenty-five million, four hundred fourteen thousand, eight hundred fifty-two".