431332340 has 24 divisors (see below), whose sum is σ = 945181440. Its totient is φ = 165031328.

The previous prime is 431332339. The next prime is 431332373. The reversal of 431332340 is 43233134.

It is a super-4 number, since 4×431332340⁴ (a number of 36 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468380 + ... + 469299.

It is an arithmetic number, because the mean of its divisors is an integer number (39382560).

Almost surely, 2^431332340 is an apocalyptic number.

It is an amenable number.

431332340 is an abundant number, since it is smaller than the sum of its proper divisors (513849100).

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

431332340 is a wasteful number, since it uses less digits than its factorization.

431332340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937711 (or 937709 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 431332340 is about 20768.5420769008. The cubic root of 431332340 is about 755.5629852050.

Adding to 431332340 its reverse (43233134), we get a palindrome (474565474).

The spelling of 431332340 in words is "four hundred thirty-one million, three hundred thirty-two thousand, three hundred forty".