90228352 has 32 divisors (see below), whose sum is σ = 185558400. Its totient is φ = 43656960.

The previous prime is 90228329. The next prime is 90228361. The reversal of 90228352 is 25382209.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7402 + ... + 15337.

It is an arithmetic number, because the mean of its divisors is an integer number (5798700).

Almost surely, 2^90228352 is an apocalyptic number.

It is an amenable number.

90228352 is an abundant number, since it is smaller than the sum of its proper divisors (95330048).

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

90228352 is a wasteful number, since it uses less digits than its factorization.

90228352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22784 (or 22772 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 90228352 is about 9498.8605632465. The cubic root of 90228352 is about 448.5191685330.

The spelling of 90228352 in words is "ninety million, two hundred twenty-eight thousand, three hundred fifty-two".