90624744 has 80 divisors (see below), whose sum is σ = 290109600. Its totient is φ = 25891488.

The previous prime is 90624733. The next prime is 90624769. The reversal of 90624744 is 44742609.

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

It is a junction number, because it is equal to n+sod(n) for n = 90624699 and 90624708.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5454 + ... + 14525.

It is an arithmetic number, because the mean of its divisors is an integer number (3626370).

Almost surely, 2^90624744 is an apocalyptic number.

It is an amenable number.

90624744 is an abundant number, since it is smaller than the sum of its proper divisors (199484856).

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

90624744 is a wasteful number, since it uses less digits than its factorization.

90624744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20004 (or 19991 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 90624744 is about 9519.7029365417. The cubic root of 90624744 is about 449.1750218376.

The spelling of 90624744 in words is "ninety million, six hundred twenty-four thousand, seven hundred forty-four".