90051948 has 36 divisors (see below), whose sum is σ = 260150800. Its totient is φ = 25729056.

The previous prime is 90051947. The next prime is 90051961. The reversal of 90051948 is 84915009.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (90051947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178423 + ... + 178926.

Almost surely, 2^90051948 is an apocalyptic number.

It is an amenable number.

90051948 is an abundant number, since it is smaller than the sum of its proper divisors (170098852).

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

90051948 is a wasteful number, since it uses less digits than its factorization.

90051948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357366 (or 357361 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 90051948 is about 9489.5704855383. The cubic root of 90051948 is about 448.2266802992.

The spelling of 90051948 in words is "ninety million, fifty-one thousand, nine hundred forty-eight".