42630516 has 24 divisors (see below), whose sum is σ = 110523840. Its totient is φ = 14210136.

The previous prime is 42630503. The next prime is 42630527. The reversal of 42630516 is 61503624.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 42630516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197256 + ... + 197471.

It is an arithmetic number, because the mean of its divisors is an integer number (4605160).

Almost surely, 2^42630516 is an apocalyptic number.

It is an amenable number.

42630516 is an abundant number, since it is smaller than the sum of its proper divisors (67893324).

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

42630516 is a wasteful number, since it uses less digits than its factorization.

42630516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394740 (or 394732 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42630516 is about 6529.2048520475. The cubic root of 42630516 is about 349.3334688958. Note that the first 3 decimals are identical.

The spelling of 42630516 in words is "forty-two million, six hundred thirty thousand, five hundred sixteen".