42104638 has 8 divisors (see below), whose sum is σ = 63279288. Its totient is φ = 21011544.

The previous prime is 42104593. The next prime is 42104659. The reversal of 42104638 is 83640124.

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

It is a super-2 number, since 2×42104638² = 3545601082222088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19081 + ... + 21172.

It is an arithmetic number, because the mean of its divisors is an integer number (7909911).

Almost surely, 2^42104638 is an apocalyptic number.

42104638 is a deficient number, since it is larger than the sum of its proper divisors (21174650).

42104638 is a wasteful number, since it uses less digits than its factorization.

42104638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40778.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 42104638 is about 6488.8086734007. The cubic root of 42104638 is about 347.8910953098.

The spelling of 42104638 in words is "forty-two million, one hundred four thousand, six hundred thirty-eight".