42861216 has 48 divisors (see below), whose sum is σ = 119133504. Its totient is φ = 13446144.

The previous prime is 42861197. The next prime is 42861229. The reversal of 42861216 is 61216824.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

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, 11500 + ... + 14763.

It is an arithmetic number, because the mean of its divisors is an integer number (2481948).

Almost surely, 2^42861216 is an apocalyptic number.

It is an amenable number.

42861216 is an abundant number, since it is smaller than the sum of its proper divisors (76272288).

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

42861216 is a wasteful number, since it uses less digits than its factorization.

42861216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26293 (or 26285 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 42861216 is about 6546.8477911129. The cubic root of 42861216 is about 349.9624884968.

The spelling of 42861216 in words is "forty-two million, eight hundred sixty-one thousand, two hundred sixteen".