540772 has 6 divisors (see below), whose sum is σ = 946358. Its totient is φ = 270384.

The previous prime is 540769. The next prime is 540773. The reversal of 540772 is 277045.

It can be written as a sum of positive squares in only one way, i.e., 509796 + 30976 = 714^2 + 176^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (540773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67593 + ... + 67600.

2⁵⁴⁰⁷⁷² is an apocalyptic number.

It is an amenable number.

540772 is a deficient number, since it is larger than the sum of its proper divisors (405586).

540772 is a wasteful number, since it uses less digits than its factorization.

540772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135197 (or 135195 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 540772 is about 735.3720146973. The cubic root of 540772 is about 81.4713161382.

The spelling of 540772 in words is "five hundred forty thousand, seven hundred seventy-two".