31740434 has 16 divisors (see below), whose sum is σ = 52322976. Its totient is φ = 14320800.

The previous prime is 31740433. The next prime is 31740439. The reversal of 31740434 is 43404713.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31740433) 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, 2252 + ... + 8279.

It is an arithmetic number, because the mean of its divisors is an integer number (3270186).

Almost surely, 2^31740434 is an apocalyptic number.

31740434 is a deficient number, since it is larger than the sum of its proper divisors (20582542).

31740434 is a wasteful number, since it uses less digits than its factorization.

31740434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 31740434 is about 5633.8649256084. The cubic root of 31740434 is about 316.6194719448.

The spelling of 31740434 in words is "thirty-one million, seven hundred forty thousand, four hundred thirty-four".