542968144 has 30 divisors (see below), whose sum is σ = 1060261566. Its totient is φ = 269360640.

The previous prime is 542968133. The next prime is 542968147. The reversal of 542968144 is 441869245.

It can be written as a sum of positive squares in 3 ways, for example, as 78996544 + 463971600 = 8888^2 + 21540^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 542968144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542968147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1253752 + ... + 1254184.

Almost surely, 2^542968144 is an apocalyptic number.

It is an amenable number.

542968144 is a deficient number, since it is larger than the sum of its proper divisors (517293422).

542968144 is an equidigital number, since it uses as much as digits as its factorization.

542968144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 616 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 542968144 is about 23301.6768495317. The cubic root of 542968144 is about 815.8145564113.

The spelling of 542968144 in words is "five hundred forty-two million, nine hundred sixty-eight thousand, one hundred forty-four".