68233290 has 32 divisors (see below), whose sum is σ = 165058560. Its totient is φ = 18051264.

The previous prime is 68233283. The next prime is 68233301. The reversal of 68233290 is 9233286.

It is a Curzon 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, 5145 + ... + 12764.

It is an arithmetic number, because the mean of its divisors is an integer number (5158080).

Almost surely, 2^68233290 is an apocalyptic number.

68233290 is an abundant number, since it is smaller than the sum of its proper divisors (96825270).

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

68233290 is a wasteful number, since it uses less digits than its factorization.

68233290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18046.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 68233290 is about 8260.3444238119. The cubic root of 68233290 is about 408.6317466934.

The spelling of 68233290 in words is "sixty-eight million, two hundred thirty-three thousand, two hundred ninety".