90180486 has 64 divisors (see below), whose sum is σ = 220239360. Its totient is φ = 27125280.

The previous prime is 90180473. The next prime is 90180511. The reversal of 90180486 is 68408109.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90180486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92775 + ... + 93741.

It is an arithmetic number, because the mean of its divisors is an integer number (3441240).

Almost surely, 2^90180486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90180486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110119680).

90180486 is an abundant number, since it is smaller than the sum of its proper divisors (130058874).

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

90180486 is a wasteful number, since it uses less digits than its factorization.

90180486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 90180486 is about 9496.3406636451. The cubic root of 90180486 is about 448.4398415973.

The spelling of 90180486 in words is "ninety million, one hundred eighty thousand, four hundred eighty-six".