540512406 has 32 divisors (see below), whose sum is σ = 1372730880. Its totient is φ = 154432008.

The previous prime is 540512363. The next prime is 540512407. The reversal of 540512406 is 604215045.

It is a super-2 number, since 2×540512406² = 584307322079817672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 540512406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540512407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714586 + ... + 715341.

It is an arithmetic number, because the mean of its divisors is an integer number (42897840).

Almost surely, 2^540512406 is an apocalyptic number.

540512406 is an abundant number, since it is smaller than the sum of its proper divisors (832218474).

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

540512406 is a wasteful number, since it uses less digits than its factorization.

540512406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429945 (or 1429939 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 540512406 is about 23248.9226847181. The cubic root of 540512406 is about 814.5827746393.

The spelling of 540512406 in words is "five hundred forty million, five hundred twelve thousand, four hundred six".