42870408 has 32 divisors (see below), whose sum is σ = 122487360. Its totient is φ = 12248640.

The previous prime is 42870407. The next prime is 42870409. The reversal of 42870408 is 80407824.

It is an interprime number because it is at equal distance from previous prime (42870407) and next prime (42870409).

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (42870407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127423 + ... + 127758.

It is an arithmetic number, because the mean of its divisors is an integer number (3827730).

Almost surely, 2^42870408 is an apocalyptic number.

It is an amenable number.

42870408 is an abundant number, since it is smaller than the sum of its proper divisors (79616952).

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

42870408 is a wasteful number, since it uses less digits than its factorization.

42870408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255197 (or 255193 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 42870408 is about 6547.5497707158. The cubic root of 42870408 is about 349.9875043158.

The spelling of 42870408 in words is "forty-two million, eight hundred seventy thousand, four hundred eight".