540288444 has 24 divisors (see below), whose sum is σ = 1304145360. Its totient is φ = 173885824.

The previous prime is 540288443. The next prime is 540288449. The reversal of 540288444 is 444882045.

It is a super-2 number, since 2×540288444² = 583823205439882272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540288443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775929 + ... + 776624.

It is an arithmetic number, because the mean of its divisors is an integer number (54339390).

Almost surely, 2^540288444 is an apocalyptic number.

It is an amenable number.

540288444 is an abundant number, since it is smaller than the sum of its proper divisors (763856916).

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

540288444 is a wasteful number, since it uses less digits than its factorization.

540288444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552589 (or 1552587 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 39.

The square root of 540288444 is about 23244.1055753927. The cubic root of 540288444 is about 814.4702512950.

The spelling of 540288444 in words is "five hundred forty million, two hundred eighty-eight thousand, four hundred forty-four".