1425021872 has 20 divisors (see below), whose sum is σ = 2923391016. Its totient is φ = 670598400.

The previous prime is 1425021841. The next prime is 1425021883. The reversal of 1425021872 is 2781205241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2619254 + ... + 2619797.

Almost surely, 2^1425021872 is an apocalyptic number.

It is an amenable number.

1425021872 is an abundant number, since it is smaller than the sum of its proper divisors (1498369144).

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

1425021872 is a wasteful number, since it uses less digits than its factorization.

1425021872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239076 (or 5239070 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 1425021872 is about 37749.4618769593. The cubic root of 1425021872 is about 1125.3143146772.

The spelling of 1425021872 in words is "one billion, four hundred twenty-five million, twenty-one thousand, eight hundred seventy-two".