542604244 has 54 divisors (see below), whose sum is σ = 1196164494. Its totient is φ = 214643520.

The previous prime is 542604241. The next prime is 542604263. The reversal of 542604244 is 442406245.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 76562500 + 466041744 = 8750^2 + 21588^2 .

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542604241) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24934 + ... + 41314.

Almost surely, 2^542604244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542604244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598082247).

542604244 is an abundant number, since it is smaller than the sum of its proper divisors (653560250).

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

542604244 is a wasteful number, since it uses less digits than its factorization.

542604244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16425 (or 16403 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 542604244 is about 23293.8670898587. The cubic root of 542604244 is about 815.6322613310.

The spelling of 542604244 in words is "five hundred forty-two million, six hundred four thousand, two hundred forty-four".