31369434 has 8 divisors (see below), whose sum is σ = 62738880. Its totient is φ = 10456476.

The previous prime is 31369421. The next prime is 31369439. The reversal of 31369434 is 43496313.

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

31369434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 31369395 and 31369404.

It is not an unprimeable number, because it can be changed into a prime (31369439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2614114 + ... + 2614125.

It is an arithmetic number, because the mean of its divisors is an integer number (7842360).

Almost surely, 2^31369434 is an apocalyptic number.

31369434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31369434 is a wasteful number, since it uses less digits than its factorization.

31369434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228244.

The product of its digits is 23328, while the sum is 33.

The square root of 31369434 is about 5600.8422580894. The cubic root of 31369434 is about 315.3810254446.

The spelling of 31369434 in words is "thirty-one million, three hundred sixty-nine thousand, four hundred thirty-four".