542402636 has 12 divisors (see below), whose sum is σ = 967114512. Its totient is φ = 266084208.

The previous prime is 542402621. The next prime is 542402669. The reversal of 542402636 is 636204245.

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, 1279040 + ... + 1279463.

It is an arithmetic number, because the mean of its divisors is an integer number (80592876).

Almost surely, 2^542402636 is an apocalyptic number.

It is an amenable number.

542402636 is a deficient number, since it is larger than the sum of its proper divisors (424711876).

542402636 is a wasteful number, since it uses less digits than its factorization.

542402636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558560 (or 2558558 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 542402636 is about 23289.5391968154. The cubic root of 542402636 is about 815.5312310614.

The spelling of 542402636 in words is "five hundred forty-two million, four hundred two thousand, six hundred thirty-six".