31264430 has 16 divisors (see below), whose sum is σ = 58091904. Its totient is φ = 12102240.

The previous prime is 31264423. The next prime is 31264433. The reversal of 31264430 is 3446213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31264396 and 31264405.

It is a congruent number.

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, 50117 + ... + 50736.

It is an arithmetic number, because the mean of its divisors is an integer number (3630744).

Almost surely, 2^31264430 is an apocalyptic number.

31264430 is a deficient number, since it is larger than the sum of its proper divisors (26827474).

31264430 is a wasteful number, since it uses less digits than its factorization.

31264430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100891.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 31264430 is about 5591.4604532269. The cubic root of 31264430 is about 315.0287367753.

The spelling of 31264430 in words is "thirty-one million, two hundred sixty-four thousand, four hundred thirty".