42689630 has 32 divisors (see below), whose sum is σ = 79816320. Its totient is φ = 16427520.

The previous prime is 42689629. The next prime is 42689657. The reversal of 42689630 is 3698624.

42689630 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 3×42689630³ (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 15 ways as a sum of consecutive naturals, for example, 27926 + ... + 29414.

It is an arithmetic number, because the mean of its divisors is an integer number (2494260).

Almost surely, 2^42689630 is an apocalyptic number.

42689630 is a deficient number, since it is larger than the sum of its proper divisors (37126690).

42689630 is a wasteful number, since it uses less digits than its factorization.

42689630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 42689630 is about 6533.7301750225. The cubic root of 42689630 is about 349.4948631496.

The spelling of 42689630 in words is "forty-two million, six hundred eighty-nine thousand, six hundred thirty".