485540538 has 64 divisors (see below), whose sum is σ = 1159667712. Its totient is φ = 132603840.

The previous prime is 485540513. The next prime is 485540551. The reversal of 485540538 is 835045584.

It is a super-2 number, since 2×485540538² = 471499228082658888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 485540538.

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, 105820 + ... + 110312.

It is an arithmetic number, because the mean of its divisors is an integer number (18119808).

Almost surely, 2^485540538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485540538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579833856).

485540538 is an abundant number, since it is smaller than the sum of its proper divisors (674127174).

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

485540538 is a wasteful number, since it uses less digits than its factorization.

485540538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619.

The product of its (nonzero) digits is 384000, while the sum is 42.

The square root of 485540538 is about 22034.9844111585. The cubic root of 485540538 is about 785.9745765463.

The spelling of 485540538 in words is "four hundred eighty-five million, five hundred forty thousand, five hundred thirty-eight".