540091656 has 96 divisors (see below), whose sum is σ = 1579556160. Its totient is φ = 165730176.

The previous prime is 540091631. The next prime is 540091667. The reversal of 540091656 is 656190045.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 540091656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548941 + ... + 549923.

It is an arithmetic number, because the mean of its divisors is an integer number (16453710).

Almost surely, 2^540091656 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 540091656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789778080).

540091656 is an abundant number, since it is smaller than the sum of its proper divisors (1039464504).

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

540091656 is a wasteful number, since it uses less digits than its factorization.

540091656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 540091656 is about 23239.8721166877. The cubic root of 540091656 is about 814.3713550870.

The spelling of 540091656 in words is "five hundred forty million, ninety-one thousand, six hundred fifty-six".