540991232 has 36 divisors (see below), whose sum is σ = 1096021416. Its totient is φ = 266449920.

The previous prime is 540991219. The next prime is 540991301. The reversal of 540991232 is 232199045.

It is a junction number, because it is equal to n+sod(n) for n = 540991192 and 540991201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1382 + ... + 32922.

Almost surely, 2^540991232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540991232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548010708).

540991232 is an abundant number, since it is smaller than the sum of its proper divisors (555030184).

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

540991232 is an equidigital number, since it uses as much as digits as its factorization.

540991232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31624 (or 31610 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 540991232 is about 23259.2182155807. The cubic root of 540991232 is about 814.8232429354.

The spelling of 540991232 in words is "five hundred forty million, nine hundred ninety-one thousand, two hundred thirty-two".