42745658 has 8 divisors (see below), whose sum is σ = 64707060. Its totient is φ = 21176640.

The previous prime is 42745627. The next prime is 42745663. The reversal of 42745658 is 85654724.

It can be written as a sum of positive squares in 2 ways, for example, as 36156169 + 6589489 = 6013^2 + 2567^2 .

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

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, 97823 + ... + 98258.

Almost surely, 2^42745658 is an apocalyptic number.

42745658 is a deficient number, since it is larger than the sum of its proper divisors (21961402).

42745658 is a wasteful number, since it uses less digits than its factorization.

42745658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196192.

The product of its digits is 268800, while the sum is 41.

The square root of 42745658 is about 6538.0163658406. The cubic root of 42745658 is about 349.6476944723.

The spelling of 42745658 in words is "forty-two million, seven hundred forty-five thousand, six hundred fifty-eight".