542917994 has 8 divisors (see below), whose sum is σ = 815401188. Its totient is φ = 271117600.

The previous prime is 542917979. The next prime is 542917997. The reversal of 542917994 is 499719245.

It can be written as a sum of positive squares in 2 ways, for example, as 529690225 + 13227769 = 23015^2 + 3637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (542917997) 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, 168707 + ... + 171894.

Almost surely, 2^542917994 is an apocalyptic number.

542917994 is a deficient number, since it is larger than the sum of its proper divisors (272483194).

542917994 is a wasteful number, since it uses less digits than its factorization.

542917994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341400.

The product of its digits is 816480, while the sum is 50.

The square root of 542917994 is about 23300.6007218698. The cubic root of 542917994 is about 815.7894386948.

The spelling of 542917994 in words is "five hundred forty-two million, nine hundred seventeen thousand, nine hundred ninety-four".