42402938 has 16 divisors (see below), whose sum is σ = 67991616. Its totient is φ = 19784160.

The previous prime is 42402907. The next prime is 42402953. The reversal of 42402938 is 83920424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9356 + ... + 13127.

It is an arithmetic number, because the mean of its divisors is an integer number (4249476).

Almost surely, 2^42402938 is an apocalyptic number.

42402938 is a deficient number, since it is larger than the sum of its proper divisors (25588678).

42402938 is a wasteful number, since it uses less digits than its factorization.

42402938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22549.

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

The square root of 42402938 is about 6511.7538344136. The cubic root of 42402938 is about 348.7107342217.

The spelling of 42402938 in words is "forty-two million, four hundred two thousand, nine hundred thirty-eight".