431555696 has 90 divisors (see below), whose sum is σ = 995951880. Its totient is φ = 180935040.

The previous prime is 431555689. The next prime is 431555711. The reversal of 431555696 is 696555134.

It is a super-3 number, since 3×431555696³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 326525 + ... + 327843.

It is an arithmetic number, because the mean of its divisors is an integer number (11066132).

Almost surely, 2^431555696 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 431555696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497975940).

431555696 is an abundant number, since it is smaller than the sum of its proper divisors (564396184).

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

431555696 is a wasteful number, since it uses less digits than its factorization.

431555696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375 (or 1345 counting only the distinct ones).

The product of its digits is 486000, while the sum is 44.

The square root of 431555696 is about 20773.9186481511. The cubic root of 431555696 is about 755.6933799451.

The spelling of 431555696 in words is "four hundred thirty-one million, five hundred fifty-five thousand, six hundred ninety-six".