31368434 has 8 divisors (see below), whose sum is σ = 49820508. Its totient is φ = 14761600.

The previous prime is 31368433. The next prime is 31368437. The reversal of 31368434 is 43486313.

It can be written as a sum of positive squares in 2 ways, for example, as 31326409 + 42025 = 5597^2 + 205^2 .

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

It is a super-2 number, since 2×31368434² = 1967957303224712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31368434.

It is not an unprimeable number, because it can be changed into a prime (31368431) 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, 461267 + ... + 461334.

Almost surely, 2^31368434 is an apocalyptic number.

31368434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31368434 is a deficient number, since it is larger than the sum of its proper divisors (18452074).

31368434 is a wasteful number, since it uses less digits than its factorization.

31368434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922620.

The product of its digits is 20736, while the sum is 32.

The square root of 31368434 is about 5600.7529850905. The cubic root of 31368434 is about 315.3776741528.

The spelling of 31368434 in words is "thirty-one million, three hundred sixty-eight thousand, four hundred thirty-four".