90572306 has 8 divisors (see below), whose sum is σ = 148209264. Its totient is φ = 41169220.

The previous prime is 90572303. The next prime is 90572323. The reversal of 90572306 is 60327509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×90572306² = 16406685228315272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90572303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058440 + ... + 2058483.

It is an arithmetic number, because the mean of its divisors is an integer number (18526158).

Almost surely, 2^90572306 is an apocalyptic number.

90572306 is a deficient number, since it is larger than the sum of its proper divisors (57636958).

90572306 is a wasteful number, since it uses less digits than its factorization.

90572306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116936.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 90572306 is about 9516.9483554341. The cubic root of 90572306 is about 449.0883700647.

The spelling of 90572306 in words is "ninety million, five hundred seventy-two thousand, three hundred six".