431915652 has 120 divisors (see below), whose sum is σ = 1325548224. Its totient is φ = 120045888.

The previous prime is 431915639. The next prime is 431915663. The reversal of 431915652 is 256519134.

431915652 is a `hidden beast` number, since 4 + 3 + 1 + 91 + 565 + 2 = 666.

It is a super-2 number, since 2×431915652² = 373102260885170208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 81343 + ... + 86489.

Almost surely, 2^431915652 is an apocalyptic number.

431915652 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431915652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662774112).

431915652 is an abundant number, since it is smaller than the sum of its proper divisors (893632572).

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

431915652 is a wasteful number, since it uses less digits than its factorization.

431915652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207 (or 5196 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 431915652 is about 20782.5804942505. The cubic root of 431915652 is about 755.9034268175.

The spelling of 431915652 in words is "four hundred thirty-one million, nine hundred fifteen thousand, six hundred fifty-two".