42402038 has 16 divisors (see below), whose sum is σ = 72852480. Its totient is φ = 18131496.

The previous prime is 42402023. The next prime is 42402043. The reversal of 42402038 is 83020424.

It is a congruent number.

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, 3545 + ... + 9867.

It is an arithmetic number, because the mean of its divisors is an integer number (4553280).

Almost surely, 2^42402038 is an apocalyptic number.

42402038 is a deficient number, since it is larger than the sum of its proper divisors (30450442).

42402038 is a wasteful number, since it uses less digits than its factorization.

42402038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 42402038 is about 6511.6847282405. The cubic root of 42402038 is about 348.7082670822.

It can be divided in two parts, 4 and 2402038, that added together give a palindrome (2402042).

The spelling of 42402038 in words is "forty-two million, four hundred two thousand, thirty-eight".