90407748 has 12 divisors (see below), whose sum is σ = 210951440. Its totient is φ = 30135912.

The previous prime is 90407741. The next prime is 90407773. The reversal of 90407748 is 84770409.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (90407741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3766978 + ... + 3767001.

Almost surely, 2^90407748 is an apocalyptic number.

It is an amenable number.

90407748 is an abundant number, since it is smaller than the sum of its proper divisors (120543692).

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

90407748 is a wasteful number, since it uses less digits than its factorization.

90407748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7533986 (or 7533984 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 90407748 is about 9508.2989014860. The cubic root of 90407748 is about 448.8162269609.

The spelling of 90407748 in words is "ninety million, four hundred seven thousand, seven hundred forty-eight".