542398544 has 20 divisors (see below), whose sum is σ = 1052977620. Its totient is φ = 270662400.

The previous prime is 542398543. The next prime is 542398547. The reversal of 542398544 is 445893245.

It can be written as a sum of positive squares in 2 ways, for example, as 436308544 + 106090000 = 20888^2 + 10300^2 .

It is a junction number, because it is equal to n+sod(n) for n = 542398495 and 542398504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542398543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25157 + ... + 41444.

It is an arithmetic number, because the mean of its divisors is an integer number (52648881).

Almost surely, 2^542398544 is an apocalyptic number.

It is an amenable number.

542398544 is a deficient number, since it is larger than the sum of its proper divisors (510579076).

542398544 is a wasteful number, since it uses less digits than its factorization.

542398544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67118 (or 67112 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The square root of 542398544 is about 23289.4513460494. The cubic root of 542398544 is about 815.5291802097.

The spelling of 542398544 in words is "five hundred forty-two million, three hundred ninety-eight thousand, five hundred forty-four".