540732 has 12 divisors (see below), whose sum is σ = 1261736. Its totient is φ = 180240.

The previous prime is 540713. The next prime is 540751. The reversal of 540732 is 237045.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (540713) and next prime (540751).

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

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 540699 and 540708.

It is a congruent number.

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, 22519 + ... + 22542.

2⁵⁴⁰⁷³² is an apocalyptic number.

It is an amenable number.

540732 is an abundant number, since it is smaller than the sum of its proper divisors (721004).

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

540732 is a wasteful number, since it uses less digits than its factorization.

540732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45068 (or 45066 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 540732 is about 735.3448170756. The cubic root of 540732 is about 81.4693073231.

Adding to 540732 its reverse (237045), we get a palindrome (777777).

The spelling of 540732 in words is "five hundred forty thousand, seven hundred thirty-two".