542279816 has 32 divisors (see below), whose sum is σ = 1132752600. Its totient is φ = 241651200.

The previous prime is 542279791. The next prime is 542279831. The reversal of 542279816 is 618972245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 521939716 + 20340100 = 22846^2 + 4510^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86885 + ... + 92916.

Almost surely, 2^542279816 is an apocalyptic number.

It is an amenable number.

542279816 is an abundant number, since it is smaller than the sum of its proper divisors (590472784).

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

542279816 is a wasteful number, since it uses less digits than its factorization.

542279816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179849 (or 179845 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 542279816 is about 23286.9022413888. The cubic root of 542279816 is about 815.4696709458.

The spelling of 542279816 in words is "five hundred forty-two million, two hundred seventy-nine thousand, eight hundred sixteen".