42757212 has 48 divisors (see below), whose sum is σ = 102021920. Its totient is φ = 13934592.

The previous prime is 42757199. The next prime is 42757229. The reversal of 42757212 is 21275724.

It is a self number, because there is not a number n which added to its sum of digits gives 42757212.

It is a congruent 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, 126708 + ... + 127044.

Almost surely, 2^42757212 is an apocalyptic number.

It is an amenable number.

42757212 is an abundant number, since it is smaller than the sum of its proper divisors (59264708).

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

42757212 is a wasteful number, since it uses less digits than its factorization.

42757212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 42757212 is about 6538.8999074768. The cubic root of 42757212 is about 349.6791944790.

The spelling of 42757212 in words is "forty-two million, seven hundred fifty-seven thousand, two hundred twelve".