42841864 has 16 divisors (see below), whose sum is σ = 86507820. Its totient is φ = 19773120.

The previous prime is 42841849. The next prime is 42841901. The reversal of 42841864 is 46814824.

It can be written as a sum of positive squares in 2 ways, for example, as 42797764 + 44100 = 6542^2 + 210^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205867 + ... + 206074.

Almost surely, 2^42841864 is an apocalyptic number.

It is an amenable number.

42841864 is an abundant number, since it is smaller than the sum of its proper divisors (43665956).

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

42841864 is a wasteful number, since it uses less digits than its factorization.

42841864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411960 (or 411956 counting only the distinct ones).

The product of its digits is 49152, while the sum is 37.

The square root of 42841864 is about 6545.3696610658. The cubic root of 42841864 is about 349.9098107753.

The spelling of 42841864 in words is "forty-two million, eight hundred forty-one thousand, eight hundred sixty-four".