540324405 has 16 divisors (see below), whose sum is σ = 960576960. Its totient is φ = 288172944.

The previous prime is 540324401. The next prime is 540324409. The reversal of 540324405 is 504423045.

It is an interprime number because it is at equal distance from previous prime (540324401) and next prime (540324409).

It is not a de Polignac number, because 540324405 - 2² = 540324401 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540324401) 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, 2001067 + ... + 2001336.

It is an arithmetic number, because the mean of its divisors is an integer number (60036060).

Almost surely, 2^540324405 is an apocalyptic number.

It is an amenable number.

540324405 is a deficient number, since it is larger than the sum of its proper divisors (420252555).

540324405 is a wasteful number, since it uses less digits than its factorization.

540324405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002417 (or 4002411 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 540324405 is about 23244.8791134736. The cubic root of 540324405 is about 814.4883209732.

The spelling of 540324405 in words is "five hundred forty million, three hundred twenty-four thousand, four hundred five".