90828290 has 64 divisors (see below), whose sum is σ = 195644160. Its totient is φ = 29702400.

The previous prime is 90828281. The next prime is 90828301. The reversal of 90828290 is 9282809.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 31 ways as a sum of consecutive naturals, for example, 204809 + ... + 205251.

It is an arithmetic number, because the mean of its divisors is an integer number (3056940).

Almost surely, 2^90828290 is an apocalyptic number.

90828290 is an abundant number, since it is smaller than the sum of its proper divisors (104815870).

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

90828290 is a wasteful number, since it uses less digits than its factorization.

90828290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 90828290 is about 9530.3877150932. The cubic root of 90828290 is about 449.5110574145.

The spelling of 90828290 in words is "ninety million, eight hundred twenty-eight thousand, two hundred ninety".