31264434 has 16 divisors (see below), whose sum is σ = 69476640. Its totient is φ = 10421460.

The previous prime is 31264433. The next prime is 31264451. The reversal of 31264434 is 43446213.

31264434 is a `hidden beast` number, since 3 + 12 + 644 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31264398 and 31264407.

It is not an unprimeable number, because it can be changed into a prime (31264433) 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, 289432 + ... + 289539.

It is an arithmetic number, because the mean of its divisors is an integer number (4342290).

Almost surely, 2^31264434 is an apocalyptic number.

31264434 is an abundant number, since it is smaller than the sum of its proper divisors (38212206).

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

31264434 is a wasteful number, since it uses less digits than its factorization.

31264434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578982 (or 578976 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 31264434 is about 5591.4608109152. The cubic root of 31264434 is about 315.0287502103.

It can be divided in two parts, 312 and 64434, that added together give a palindrome (64746).

The spelling of 31264434 in words is "thirty-one million, two hundred sixty-four thousand, four hundred thirty-four".