90004638460 has 48 divisors (see below), whose sum is σ = 206269322112. Its totient is φ = 32716756800.

The previous prime is 90004638443. The next prime is 90004638491. The reversal of 90004638460 is 6483640009.

It is a super-2 number, since 2×90004638460² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525919 + ... + 675721.

It is an arithmetic number, because the mean of its divisors is an integer number (4297277544).

Almost surely, 2^90004638460 is an apocalyptic number.

It is an amenable number.

90004638460 is an abundant number, since it is smaller than the sum of its proper divisors (116264683652).

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

90004638460 is a wasteful number, since it uses less digits than its factorization.

90004638460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152554 (or 152552 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 90004638460 in words is "ninety billion, four million, six hundred thirty-eight thousand, four hundred sixty".