542116628 has 12 divisors (see below), whose sum is σ = 949014612. Its totient is φ = 270969600.

The previous prime is 542116613. The next prime is 542116643. The reversal of 542116628 is 826611245.

It is an interprime number because it is at equal distance from previous prime (542116613) and next prime (542116643).

It can be written as a sum of positive squares in 2 ways, for example, as 79780624 + 462336004 = 8932^2 + 21502^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7325 + ... + 33732.

It is an arithmetic number, because the mean of its divisors is an integer number (79084551).

Almost surely, 2^542116628 is an apocalyptic number.

It is an amenable number.

542116628 is a deficient number, since it is larger than the sum of its proper divisors (406897984).

542116628 is a wasteful number, since it uses less digits than its factorization.

542116628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44362 (or 44360 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 542116628 is about 23283.3981196903. The cubic root of 542116628 is about 815.3878631093.

The spelling of 542116628 in words is "five hundred forty-two million, one hundred sixteen thousand, six hundred twenty-eight".