90054860 has 96 divisors (see below), whose sum is σ = 229461120. Its totient is φ = 29030400.

The previous prime is 90054859. The next prime is 90054869. The reversal of 90054860 is 6845009.

90054860 = 411² + 412² + ... + 697².

It is not an unprimeable number, because it can be changed into a prime (90054869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166190 + ... + 166730.

It is an arithmetic number, because the mean of its divisors is an integer number (2390220).

Almost surely, 2^90054860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90054860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114730560).

90054860 is an abundant number, since it is smaller than the sum of its proper divisors (139406260).

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

90054860 is a wasteful number, since it uses less digits than its factorization.

90054860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 90054860 is about 9489.7239158998. The cubic root of 90054860 is about 448.2315116662.

Adding to 90054860 its reverse (6845009), we get a palindrome (96899869).

The spelling of 90054860 in words is "ninety million, fifty-four thousand, eight hundred sixty".