42630684 has 24 divisors (see below), whose sum is σ = 103797120. Its totient is φ = 13592304.

The previous prime is 42630677. The next prime is 42630703. The reversal of 42630684 is 48603624.

42630684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×42630684³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76954 + ... + 77505.

It is an arithmetic number, because the mean of its divisors is an integer number (4324880).

Almost surely, 2^42630684 is an apocalyptic number.

It is an amenable number.

42630684 is an abundant number, since it is smaller than the sum of its proper divisors (61166436).

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

42630684 is a wasteful number, since it uses less digits than its factorization.

42630684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154489 (or 154487 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 42630684 is about 6529.2177173073. The cubic root of 42630684 is about 349.3339277842. Note that the first 3 decimals are identical.

The spelling of 42630684 in words is "forty-two million, six hundred thirty thousand, six hundred eighty-four".