90672426 has 64 divisors (see below), whose sum is σ = 218332800. Its totient is φ = 27727488.

The previous prime is 90672419. The next prime is 90672431. The reversal of 90672426 is 62427609.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159070 + ... + 159638.

It is an arithmetic number, because the mean of its divisors is an integer number (3411450).

Almost surely, 2^90672426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90672426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109166400).

90672426 is an abundant number, since it is smaller than the sum of its proper divisors (127660374).

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

90672426 is a wasteful number, since it uses less digits than its factorization.

90672426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 90672426 is about 9522.2069920791. The cubic root of 90672426 is about 449.2537854927.

The spelling of 90672426 in words is "ninety million, six hundred seventy-two thousand, four hundred twenty-six".