31768230 has 32 divisors (see below), whose sum is σ = 82109664. Its totient is φ = 7819776.

The previous prime is 31768229. The next prime is 31768241. The reversal of 31768230 is 3286713.

31768230 = T₉₅₆ + T₉₅₇ + ... + T₁₀₂₀.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40339 + ... + 41118.

It is an arithmetic number, because the mean of its divisors is an integer number (2565927).

Almost surely, 2^31768230 is an apocalyptic number.

31768230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31768230 is an abundant number, since it is smaller than the sum of its proper divisors (50341434).

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

31768230 is a wasteful number, since it uses less digits than its factorization.

31768230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81480.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 31768230 is about 5636.3312535727. The cubic root of 31768230 is about 316.7118692013.

The spelling of 31768230 in words is "thirty-one million, seven hundred sixty-eight thousand, two hundred thirty".