90244736 has 32 divisors (see below), whose sum is σ = 180442080. Its totient is φ = 44957440.

The previous prime is 90244729. The next prime is 90244753. The reversal of 90244736 is 63744209.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×90244736² = 16288224751419392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90244696 and 90244705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38675 + ... + 40941.

It is an arithmetic number, because the mean of its divisors is an integer number (5638815).

Almost surely, 2^90244736 is an apocalyptic number.

It is an amenable number.

90244736 is a deficient number, since it is larger than the sum of its proper divisors (90197344).

90244736 is a wasteful number, since it uses less digits than its factorization.

90244736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592 (or 2580 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 90244736 is about 9499.7229433284. The cubic root of 90244736 is about 448.5463148166.

The spelling of 90244736 in words is "ninety million, two hundred forty-four thousand, seven hundred thirty-six".