42142912 has 56 divisors (see below), whose sum is σ = 100624640. Its totient is φ = 17107200.

The previous prime is 42142909. The next prime is 42142921. The reversal of 42142912 is 21924124.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6037 + ... + 10987.

Almost surely, 2^42142912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42142912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50312320).

42142912 is an abundant number, since it is smaller than the sum of its proper divisors (58481728).

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

42142912 is a wasteful number, since it uses less digits than its factorization.

42142912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989 (or 4979 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 42142912 is about 6491.7572351406. The cubic root of 42142912 is about 347.9964768217.

The spelling of 42142912 in words is "forty-two million, one hundred forty-two thousand, nine hundred twelve".