90945192 has 32 divisors (see below), whose sum is σ = 244853280. Its totient is φ = 27983040.

The previous prime is 90945187. The next prime is 90945203. The reversal of 90945192 is 29154909.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 90945192.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145434 + ... + 146057.

It is an arithmetic number, because the mean of its divisors is an integer number (7651665).

Almost surely, 2^90945192 is an apocalyptic number.

It is an amenable number.

90945192 is an abundant number, since it is smaller than the sum of its proper divisors (153908088).

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

90945192 is a wasteful number, since it uses less digits than its factorization.

90945192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291513 (or 291509 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 90945192 is about 9536.5188617231. The cubic root of 90945192 is about 449.7038248632.

The spelling of 90945192 in words is "ninety million, nine hundred forty-five thousand, one hundred ninety-two".