90000744 has 16 divisors (see below), whose sum is σ = 225001920. Its totient is φ = 30000240.

The previous prime is 90000697. The next prime is 90000749. The reversal of 90000744 is 44700009.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 3750031 = 90000744 / (9 + 0 + 0 + 0 + 0 + 7 + 4 + 4).

It is not an unprimeable number, because it can be changed into a prime (90000749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874992 + ... + 1875039.

It is an arithmetic number, because the mean of its divisors is an integer number (14062620).

Almost surely, 2^90000744 is an apocalyptic number.

It is an amenable number.

90000744 is an abundant number, since it is smaller than the sum of its proper divisors (135001176).

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

90000744 is a wasteful number, since it uses less digits than its factorization.

90000744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750040 (or 3750036 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 90000744 is about 9486.8721926671. The cubic root of 90000744 is about 448.1417095283.

The spelling of 90000744 in words is "ninety million, seven hundred forty-four", and thus it is an aban number.