90652290 has 32 divisors (see below), whose sum is σ = 217930176. Its totient is φ = 24133440.

The previous prime is 90652267. The next prime is 90652301. The reversal of 90652290 is 9225609.

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, 18544 + ... + 22916.

It is an arithmetic number, because the mean of its divisors is an integer number (6810318).

Almost surely, 2^90652290 is an apocalyptic number.

90652290 is an abundant number, since it is smaller than the sum of its proper divisors (127277886).

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

90652290 is a wasteful number, since it uses less digits than its factorization.

90652290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 90652290 is about 9521.1496154614. The cubic root of 90652290 is about 449.2205271496.

Adding to 90652290 its reverse (9225609), we get a palindrome (99877899).

The spelling of 90652290 in words is "ninety million, six hundred fifty-two thousand, two hundred ninety".