42915602 has 16 divisors (see below), whose sum is σ = 66181752. Its totient is φ = 20858880.

The previous prime is 42915581. The next prime is 42915611. The reversal of 42915602 is 20651924.

It is a happy number.

42915602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 6551²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 11566801 + 31348801 = 3401^2 + 5599^2 .

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, 26858 + ... + 28410.

Almost surely, 2^42915602 is an apocalyptic number.

42915602 is a deficient number, since it is larger than the sum of its proper divisors (23266150).

42915602 is a wasteful number, since it uses less digits than its factorization.

42915602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 42915602 is about 6551.0000763242. Note that the first 4 decimals coincide. The cubic root of 42915602 is about 350.1104467762.

The spelling of 42915602 in words is "forty-two million, nine hundred fifteen thousand, six hundred two".