42178912 has 48 divisors (see below), whose sum is σ = 85542912. Its totient is φ = 20465280.

The previous prime is 42178909. The next prime is 42178919. The reversal of 42178912 is 21987124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42178919) 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, 220737 + ... + 220927.

It is an arithmetic number, because the mean of its divisors is an integer number (1782144).

Almost surely, 2^42178912 is an apocalyptic number.

It is an amenable number.

42178912 is an abundant number, since it is smaller than the sum of its proper divisors (43364000).

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

42178912 is a wasteful number, since it uses less digits than its factorization.

42178912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 363 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 42178912 is about 6494.5293901868. The cubic root of 42178912 is about 348.0955390128.

The spelling of 42178912 in words is "forty-two million, one hundred seventy-eight thousand, nine hundred twelve".