431401957 has 8 divisors (see below), whose sum is σ = 498571200. Its totient is φ = 365617824.

The previous prime is 431401939. The next prime is 431401963. The reversal of 431401957 is 759104134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431401957 - 2¹⁹ = 430877669 is a prime.

It is a super-2 number, since 2×431401957² = 372215297006859698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431401937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345607 + ... + 346852.

It is an arithmetic number, because the mean of its divisors is an integer number (62321400).

Almost surely, 2^431401957 is an apocalyptic number.

It is an amenable number.

431401957 is a deficient number, since it is larger than the sum of its proper divisors (67169243).

431401957 is an equidigital number, since it uses as much as digits as its factorization.

431401957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692555.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 431401957 is about 20770.2180296693. The cubic root of 431401957 is about 755.6036322837.

The spelling of 431401957 in words is "four hundred thirty-one million, four hundred one thousand, nine hundred fifty-seven".