42856212 has 48 divisors (see below), whose sum is σ = 117380480. Its totient is φ = 11912832.

The previous prime is 42856207. The next prime is 42856213. The reversal of 42856212 is 21265824.

It is a self number, because there is not a number n which added to its sum of digits gives 42856212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42856213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3787 + ... + 10002.

Almost surely, 2^42856212 is an apocalyptic number.

42856212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42856212 is an abundant number, since it is smaller than the sum of its proper divisors (74524268).

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

42856212 is a wasteful number, since it uses less digits than its factorization.

42856212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13840 (or 13838 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 42856212 is about 6546.4656113051. The cubic root of 42856212 is about 349.9488687211.

The spelling of 42856212 in words is "forty-two million, eight hundred fifty-six thousand, two hundred twelve".