90387190 has 16 divisors (see below), whose sum is σ = 162808128. Its totient is φ = 36130176.

The previous prime is 90387179. The next prime is 90387203. The reversal of 90387190 is 9178309.

It is a super-2 number, since 2×90387190² = 16339688232192200, which contains 22 as substring.

It is a congruent number.

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, 21934 + ... + 25726.

It is an arithmetic number, because the mean of its divisors is an integer number (10175508).

Almost surely, 2^90387190 is an apocalyptic number.

90387190 is a deficient number, since it is larger than the sum of its proper divisors (72420938).

90387190 is a wasteful number, since it uses less digits than its factorization.

90387190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 90387190 is about 9507.2177843994. The cubic root of 90387190 is about 448.7822053066.

The spelling of 90387190 in words is "ninety million, three hundred eighty-seven thousand, one hundred ninety".