542739684 has 12 divisors (see below), whose sum is σ = 1266392624. Its totient is φ = 180913224.

The previous prime is 542739677. The next prime is 542739697. The reversal of 542739684 is 486937245.

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

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, 22614142 + ... + 22614165.

Almost surely, 2^542739684 is an apocalyptic number.

It is an amenable number.

542739684 is an abundant number, since it is smaller than the sum of its proper divisors (723652940).

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

542739684 is a wasteful number, since it uses less digits than its factorization.

542739684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45228314 (or 45228312 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 542739684 is about 23296.7741114516. The cubic root of 542739684 is about 815.7001192861.

The spelling of 542739684 in words is "five hundred forty-two million, seven hundred thirty-nine thousand, six hundred eighty-four".