542478724 has 6 divisors (see below), whose sum is σ = 949337774. Its totient is φ = 271239360.

The previous prime is 542478707. The next prime is 542478733. The reversal of 542478724 is 427874245.

It can be written as a sum of positive squares in only one way, i.e., 312653124 + 229825600 = 17682^2 + 15160^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67809837 + ... + 67809844.

Almost surely, 2^542478724 is an apocalyptic number.

It is an amenable number.

542478724 is a deficient number, since it is larger than the sum of its proper divisors (406859050).

542478724 is a wasteful number, since it uses less digits than its factorization.

542478724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135619685 (or 135619683 counting only the distinct ones).

The product of its digits is 501760, while the sum is 43.

The square root of 542478724 is about 23291.1726626205. The cubic root of 542478724 is about 815.5693633976.

It can be divided in two parts, 5424 and 78724, that added together give a palindrome (84148).

The spelling of 542478724 in words is "five hundred forty-two million, four hundred seventy-eight thousand, seven hundred twenty-four".