42444906 has 32 divisors (see below), whose sum is σ = 97387008. Its totient is φ = 12080880.

The previous prime is 42444889. The next prime is 42444931. The reversal of 42444906 is 60944424.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10101 + ... + 13671.

It is an arithmetic number, because the mean of its divisors is an integer number (3043344).

Almost surely, 2^42444906 is an apocalyptic number.

42444906 is an abundant number, since it is smaller than the sum of its proper divisors (54942102).

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

42444906 is a wasteful number, since it uses less digits than its factorization.

42444906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 42444906 is about 6514.9755179893. The cubic root of 42444906 is about 348.8257409267.

The spelling of 42444906 in words is "forty-two million, four hundred forty-four thousand, nine hundred six".