42438902 has 32 divisors (see below), whose sum is σ = 74952864. Its totient is φ = 17804800.

The previous prime is 42438899. The next prime is 42438911. The reversal of 42438902 is 20983424.

42438902 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 3×42438902³ (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, 18752 + ... + 20892.

It is an arithmetic number, because the mean of its divisors is an integer number (2342277).

Almost surely, 2^42438902 is an apocalyptic number.

42438902 is a deficient number, since it is larger than the sum of its proper divisors (32513962).

42438902 is a wasteful number, since it uses less digits than its factorization.

42438902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 42438902 is about 6514.5147171528. The cubic root of 42438902 is about 348.8092925571.

The spelling of 42438902 in words is "forty-two million, four hundred thirty-eight thousand, nine hundred two".