540645388 has 6 divisors (see below), whose sum is σ = 946129436. Its totient is φ = 270322692.

The previous prime is 540645353. The next prime is 540645397. The reversal of 540645388 is 883546045.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67580670 + ... + 67580677.

Almost surely, 2^540645388 is an apocalyptic number.

It is an amenable number.

540645388 is a deficient number, since it is larger than the sum of its proper divisors (405484048).

540645388 is a wasteful number, since it uses less digits than its factorization.

540645388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135161351 (or 135161349 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The square root of 540645388 is about 23251.7824693076. The cubic root of 540645388 is about 814.6495729606.

The spelling of 540645388 in words is "five hundred forty million, six hundred forty-five thousand, three hundred eighty-eight".