90481974 has 32 divisors (see below), whose sum is σ = 200206080. Its totient is φ = 27031200.

The previous prime is 90481949. The next prime is 90481997. The reversal of 90481974 is 47918409.

It is a Curzon number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 4969 + ... + 14340.

It is an arithmetic number, because the mean of its divisors is an integer number (6256440).

Almost surely, 2^90481974 is an apocalyptic number.

90481974 is an abundant number, since it is smaller than the sum of its proper divisors (109724106).

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

90481974 is a wasteful number, since it uses less digits than its factorization.

90481974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19396.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 90481974 is about 9512.2013225121. The cubic root of 90481974 is about 448.9390214525.

The spelling of 90481974 in words is "ninety million, four hundred eighty-one thousand, nine hundred seventy-four".