542661298 has 4 divisors (see below), whose sum is σ = 813991950. Its totient is φ = 271330648.

The previous prime is 542661283. The next prime is 542661331. The reversal of 542661298 is 892166245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 540237049 + 2424249 = 23243^2 + 1557^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135665323 + ... + 135665326.

Almost surely, 2^542661298 is an apocalyptic number.

542661298 is a deficient number, since it is larger than the sum of its proper divisors (271330652).

542661298 is a wasteful number, since it uses less digits than its factorization.

542661298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271330651.

The product of its digits is 207360, while the sum is 43.

The square root of 542661298 is about 23295.0917147797. The cubic root of 542661298 is about 815.6608478208.

The spelling of 542661298 in words is "five hundred forty-two million, six hundred sixty-one thousand, two hundred ninety-eight".