90369810 has 64 divisors (see below), whose sum is σ = 242352000. Its totient is φ = 23962176.

The previous prime is 90369809. The next prime is 90369817. The reversal of 90369810 is 1896309.

It is a super-2 number, since 2×90369810² = 16333405118872200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (90369817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52341 + ... + 54039.

It is an arithmetic number, because the mean of its divisors is an integer number (3786750).

Almost surely, 2^90369810 is an apocalyptic number.

90369810 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 90369810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121176000).

90369810 is an abundant number, since it is smaller than the sum of its proper divisors (151982190).

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

90369810 is a wasteful number, since it uses less digits than its factorization.

90369810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 90369810 is about 9506.3036980732. The cubic root of 90369810 is about 448.7534389341.

The spelling of 90369810 in words is "ninety million, three hundred sixty-nine thousand, eight hundred ten".