540401604 has 12 divisors (see below), whose sum is σ = 1260937104. Its totient is φ = 180133864.

The previous prime is 540401599. The next prime is 540401671. The reversal of 540401604 is 406104045.

540401604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22516722 + ... + 22516745.

It is an arithmetic number, because the mean of its divisors is an integer number (105078092).

Almost surely, 2^540401604 is an apocalyptic number.

It is an amenable number.

540401604 is an abundant number, since it is smaller than the sum of its proper divisors (720535500).

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

540401604 is a wasteful number, since it uses less digits than its factorization.

540401604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45033474 (or 45033472 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 540401604 is about 23246.5396134565. The cubic root of 540401604 is about 814.5271092079.

Adding to 540401604 its reverse (406104045), we get a palindrome (946505649).

The spelling of 540401604 in words is "five hundred forty million, four hundred one thousand, six hundred four".