42106904 has 16 divisors (see below), whose sum is σ = 90229200. Its totient is φ = 18045792.

The previous prime is 42106903. The next prime is 42106919. The reversal of 42106904 is 40960124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42106901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375899 + ... + 376010.

It is an arithmetic number, because the mean of its divisors is an integer number (5639325).

Almost surely, 2^42106904 is an apocalyptic number.

It is an amenable number.

42106904 is an abundant number, since it is smaller than the sum of its proper divisors (48122296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42106904 is a wasteful number, since it uses less digits than its factorization.

42106904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751922 (or 751918 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 42106904 is about 6488.9832793744. The cubic root of 42106904 is about 347.8973361669.

The spelling of 42106904 in words is "forty-two million, one hundred six thousand, nine hundred four".