31040434 has 8 divisors (see below), whose sum is σ = 46766448. Its totient is φ = 15451620.

The previous prime is 31040413. The next prime is 31040459. The reversal of 31040434 is 43404013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33732 + ... + 34639.

It is an arithmetic number, because the mean of its divisors is an integer number (5845806).

Almost surely, 2^31040434 is an apocalyptic number.

31040434 is a deficient number, since it is larger than the sum of its proper divisors (15726014).

31040434 is a wasteful number, since it uses less digits than its factorization.

31040434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68600.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 31040434 is about 5571.3942599676. The cubic root of 31040434 is about 314.2745850250.

Adding to 31040434 its reverse (43404013), we get a palindrome (74444447).

The spelling of 31040434 in words is "thirty-one million, forty thousand, four hundred thirty-four".