890662290 has 64 divisors (see below), whose sum is σ = 2445790464. Its totient is φ = 203344128.

The previous prime is 890662247. The next prime is 890662291. The reversal of 890662290 is 92266098.

890662290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (890662291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232672 + ... + 236468.

It is an arithmetic number, because the mean of its divisors is an integer number (38215476).

Almost surely, 2^890662290 is an apocalyptic number.

890662290 is an abundant number, since it is smaller than the sum of its proper divisors (1555128174).

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

890662290 is a wasteful number, since it uses less digits than its factorization.

890662290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4931.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 890662290 is about 29843.9657217334. The cubic root of 890662290 is about 962.1387105249.

The spelling of 890662290 in words is "eight hundred ninety million, six hundred sixty-two thousand, two hundred ninety".