542651244 has 12 divisors (see below), whose sum is σ = 1266186264. Its totient is φ = 180883744.

The previous prime is 542651231. The next prime is 542651251. The reversal of 542651244 is 442156245.

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

It is a super-2 number, since 2×542651244² = 588940745229495072, which contains 22 as substring.

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, 22610457 + ... + 22610480.

It is an arithmetic number, because the mean of its divisors is an integer number (105515522).

Almost surely, 2^542651244 is an apocalyptic number.

It is an amenable number.

542651244 is an abundant number, since it is smaller than the sum of its proper divisors (723535020).

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

542651244 is a wasteful number, since it uses less digits than its factorization.

542651244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45220944 (or 45220942 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 542651244 is about 23294.8759172484. The cubic root of 542651244 is about 815.6558104830.

The spelling of 542651244 in words is "five hundred forty-two million, six hundred fifty-one thousand, two hundred forty-four".