42630458 has 32 divisors (see below), whose sum is σ = 74644416. Its totient is φ = 18079488.

The previous prime is 42630451. The next prime is 42630463. The reversal of 42630458 is 85403624.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42630451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17885 + ... + 20127.

It is an arithmetic number, because the mean of its divisors is an integer number (2332638).

Almost surely, 2^42630458 is an apocalyptic number.

42630458 is a deficient number, since it is larger than the sum of its proper divisors (32013958).

42630458 is a wasteful number, since it uses less digits than its factorization.

42630458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 42630458 is about 6529.2004104637. The cubic root of 42630458 is about 349.3333104698. Note that the first 4 decimals are identical.

The spelling of 42630458 in words is "forty-two million, six hundred thirty thousand, four hundred fifty-eight".