90070632 has 24 divisors (see below), whose sum is σ = 243941490. Its totient is φ = 30023520.

The previous prime is 90070619. The next prime is 90070633. The reversal of 90070632 is 23607009.

It can be written as a sum of positive squares in only one way, i.e., 89984196 + 86436 = 9486^2 + 294^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×90070632² = 16225437497758848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90070596 and 90070605.

It is not an unprimeable number, because it can be changed into a prime (90070633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 625419 + ... + 625562.

Almost surely, 2^90070632 is an apocalyptic number.

It is an amenable number.

90070632 is an abundant number, since it is smaller than the sum of its proper divisors (153870858).

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

90070632 is a wasteful number, since it uses less digits than its factorization.

90070632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250993 (or 1250986 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 90070632 is about 9490.5548836725. The cubic root of 90070632 is about 448.2576775490.

The spelling of 90070632 in words is "ninety million, seventy thousand, six hundred thirty-two".