42557698 has 8 divisors (see below), whose sum is σ = 67591692. Its totient is φ = 20027136.

The previous prime is 42557657. The next prime is 42557707. The reversal of 42557698 is 89675524.

It can be written as a sum of positive squares in 2 ways, for example, as 33837489 + 8720209 = 5817^2 + 2953^2 .

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

It is a super-2 number, since 2×42557698² = 3622315318118408, which contains 22 as substring.

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, 625815 + ... + 625882.

Almost surely, 2^42557698 is an apocalyptic number.

42557698 is a deficient number, since it is larger than the sum of its proper divisors (25033994).

42557698 is a wasteful number, since it uses less digits than its factorization.

42557698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251716.

The product of its digits is 604800, while the sum is 46.

The square root of 42557698 is about 6523.6261388893. The cubic root of 42557698 is about 349.1344544787.

The spelling of 42557698 in words is "forty-two million, five hundred fifty-seven thousand, six hundred ninety-eight".