540551412 has 18 divisors (see below), whose sum is σ = 1366393938. Its totient is φ = 180183792.

The previous prime is 540551393. The next prime is 540551413. The reversal of 540551412 is 214155045.

It can be written as a sum of positive squares in only one way, i.e., 489913956 + 50637456 = 22134^2 + 7116^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540551413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7507623 + ... + 7507694.

Almost surely, 2^540551412 is an apocalyptic number.

It is an amenable number.

540551412 is an abundant number, since it is smaller than the sum of its proper divisors (825842526).

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

540551412 is a wasteful number, since it uses less digits than its factorization.

540551412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015327 (or 15015322 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 540551412 is about 23249.7615471643. The cubic root of 540551412 is about 814.6023689175.

The spelling of 540551412 in words is "five hundred forty million, five hundred fifty-one thousand, four hundred twelve".