540611604 has 96 divisors (see below), whose sum is σ = 1558215680. Its totient is φ = 160963200.

The previous prime is 540611597. The next prime is 540611627. The reversal of 540611604 is 406116045.

540611604 is a `hidden beast` number, since 5 + 40 + 6 + 11 + 604 = 666.

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

It is a congruent number.

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, 37314 + ... + 49734.

Almost surely, 2^540611604 is an apocalyptic number.

540611604 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540611604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779107840).

540611604 is an abundant number, since it is smaller than the sum of its proper divisors (1017604076).

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

540611604 is a wasteful number, since it uses less digits than its factorization.

540611604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12478 (or 12470 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 540611604 is about 23251.0559760197. The cubic root of 540611604 is about 814.6326039238.

Adding to 540611604 its reverse (406116045), we get a palindrome (946727649).

The spelling of 540611604 in words is "five hundred forty million, six hundred eleven thousand, six hundred four".