542139800 has 24 divisors (see below), whose sum is σ = 1260475500. Its totient is φ = 216855840.

The previous prime is 542139751. The next prime is 542139817. The reversal of 542139800 is 8931245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1355150 + ... + 1355549.

Almost surely, 2^542139800 is an apocalyptic number.

542139800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

542139800 is an abundant number, since it is smaller than the sum of its proper divisors (718335700).

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

542139800 is a wasteful number, since it uses less digits than its factorization.

542139800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710715 (or 2710706 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 542139800 is about 23283.8957221510. The cubic root of 542139800 is about 815.3994804731.

The spelling of 542139800 in words is "five hundred forty-two million, one hundred thirty-nine thousand, eight hundred".