8645932290 has 32 divisors (see below), whose sum is σ = 20955692736. Its totient is φ = 2282753600.

The previous prime is 8645932279. The next prime is 8645932303. The reversal of 8645932290 is 922395468.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423692 + ... + 1429751.

It is an arithmetic number, because the mean of its divisors is an integer number (654865398).

Almost surely, 2^8645932290 is an apocalyptic number.

8645932290 is an abundant number, since it is smaller than the sum of its proper divisors (12309760446).

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

8645932290 is a wasteful number, since it uses less digits than its factorization.

8645932290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853554.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 8645932290 is about 92983.5054727450. The cubic root of 8645932290 is about 2052.4406615874.

The spelling of 8645932290 in words is "eight billion, six hundred forty-five million, nine hundred thirty-two thousand, two hundred ninety".