540991946 has 8 divisors (see below), whose sum is σ = 885259584. Its totient is φ = 245905420.

The previous prime is 540991889. The next prime is 540991963. The reversal of 540991946 is 649199045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 540991946.

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, 12295250 + ... + 12295293.

It is an arithmetic number, because the mean of its divisors is an integer number (110657448).

Almost surely, 2^540991946 is an apocalyptic number.

540991946 is a deficient number, since it is larger than the sum of its proper divisors (344267638).

540991946 is a wasteful number, since it uses less digits than its factorization.

540991946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24590556.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 540991946 is about 23259.2335643288. The cubic root of 540991946 is about 814.8236014030.

The spelling of 540991946 in words is "five hundred forty million, nine hundred ninety-one thousand, nine hundred forty-six".