42033638 has 8 divisors (see below), whose sum is σ = 63089832. Its totient is φ = 21003696.

The previous prime is 42033631. The next prime is 42033653. The reversal of 42033638 is 83633024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42033638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42033631) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1895 + ... + 9362.

It is an arithmetic number, because the mean of its divisors is an integer number (7886229).

Almost surely, 2^42033638 is an apocalyptic number.

42033638 is a deficient number, since it is larger than the sum of its proper divisors (21056194).

42033638 is a wasteful number, since it uses less digits than its factorization.

42033638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13126.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 42033638 is about 6483.3354070262. The cubic root of 42033638 is about 347.6954386017.

The spelling of 42033638 in words is "forty-two million, thirty-three thousand, six hundred thirty-eight".