425647872 has 180 divisors, whose sum is σ = 1367701720. Its totient is φ = 130885632.

The previous prime is 425647843. The next prime is 425647883. The reversal of 425647872 is 278746524.

It is a happy number.

425647872 is a `hidden beast` number, since 4 + 2 + 564 + 7 + 87 + 2 = 666.

It is a super-2 number, since 2×425647872² = 362352221876256768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 268779 + ... + 270357.

Almost surely, 2^425647872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425647872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683850860).

425647872 is an abundant number, since it is smaller than the sum of its proper divisors (942053848).

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

425647872 is a wasteful number, since it uses less digits than its factorization.

425647872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620 (or 1597 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 425647872 is about 20631.2353483741. The cubic root of 425647872 is about 752.2291439921.

The spelling of 425647872 in words is "four hundred twenty-five million, six hundred forty-seven thousand, eight hundred seventy-two".