542397944 has 32 divisors (see below), whose sum is σ = 1111598640. Its totient is φ = 246067200.

The previous prime is 542397943. The next prime is 542397949. The reversal of 542397944 is 449793245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542397941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41912 + ... + 53304.

Almost surely, 2^542397944 is an apocalyptic number.

It is an amenable number.

542397944 is an abundant number, since it is smaller than the sum of its proper divisors (569200696).

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

542397944 is a wasteful number, since it uses less digits than its factorization.

542397944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11951 (or 11947 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 542397944 is about 23289.4384646775. The cubic root of 542397944 is about 815.5288794974.

The spelling of 542397944 in words is "five hundred forty-two million, three hundred ninety-seven thousand, nine hundred forty-four".