431401242 has 32 divisors (see below), whose sum is σ = 869916672. Its totient is φ = 142620464.

The previous prime is 431401207. The next prime is 431401253. The reversal of 431401242 is 242104134.

431401242 = 184² + 185² + ... + 1091².

It is a super-2 number, since 2×431401242² = 372214063198285128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521233 + ... + 522059.

It is an arithmetic number, because the mean of its divisors is an integer number (27184896).

Almost surely, 2^431401242 is an apocalyptic number.

431401242 is an abundant number, since it is smaller than the sum of its proper divisors (438515430).

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

431401242 is a wasteful number, since it uses less digits than its factorization.

431401242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 431401242 is about 20770.2008175174. The cubic root of 431401242 is about 755.6032148410.

Adding to 431401242 its reverse (242104134), we get a palindrome (673505376).

The spelling of 431401242 in words is "four hundred thirty-one million, four hundred one thousand, two hundred forty-two".