42458656 has 24 divisors (see below), whose sum is σ = 88508700. Its totient is φ = 19980288.

The previous prime is 42458651. The next prime is 42458659. The reversal of 42458656 is 65685424.

It can be written as a sum of positive squares in 2 ways, for example, as 42458256 + 400 = 6516^2 + 20^2 .

It is not an unprimeable number, because it can be changed into a prime (42458651) 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, 38481 + ... + 39568.

Almost surely, 2^42458656 is an apocalyptic number.

It is an amenable number.

42458656 is an abundant number, since it is smaller than the sum of its proper divisors (46050044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42458656 is a wasteful number, since it uses less digits than its factorization.

42458656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78076 (or 78068 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 42458656 is about 6516.0306936048. The cubic root of 42458656 is about 348.8634041515.

The spelling of 42458656 in words is "forty-two million, four hundred fifty-eight thousand, six hundred fifty-six".