90266904 has 192 divisors, whose sum is σ = 314496000. Its totient is φ = 22733568.

The previous prime is 90266893. The next prime is 90266921. The reversal of 90266904 is 40966209.

It is a super-2 number, since 2×90266904² = 16296227915490432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150397 + ... + 150995.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 2^90266904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90266904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157248000).

90266904 is an abundant number, since it is smaller than the sum of its proper divisors (224229096).

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

90266904 is a wasteful number, since it uses less digits than its factorization.

90266904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 90266904 is about 9500.8896425545. The cubic root of 90266904 is about 448.5830392510.

The spelling of 90266904 in words is "ninety million, two hundred sixty-six thousand, nine hundred four".