42787912 has 32 divisors (see below), whose sum is σ = 88646400. Its totient is φ = 19258624.

The previous prime is 42787897. The next prime is 42787939. The reversal of 42787912 is 21978724.

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, 3712 + ... + 9967.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^42787912 is an apocalyptic number.

It is an amenable number.

42787912 is an abundant number, since it is smaller than the sum of its proper divisors (45858488).

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

42787912 is a wasteful number, since it uses less digits than its factorization.

42787912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13725 (or 13721 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 42787912 is about 6541.2469759213. The cubic root of 42787912 is about 349.7628652212.

The spelling of 42787912 in words is "forty-two million, seven hundred eighty-seven thousand, nine hundred twelve".