42278152 has 16 divisors (see below), whose sum is σ = 90596160. Its totient is φ = 18119184.

The previous prime is 42278123. The next prime is 42278179. The reversal of 42278152 is 25187224.

It is a happy number.

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, 377428 + ... + 377539.

It is an arithmetic number, because the mean of its divisors is an integer number (5662260).

Almost surely, 2^42278152 is an apocalyptic number.

It is an amenable number.

42278152 is an abundant number, since it is smaller than the sum of its proper divisors (48318008).

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

42278152 is a wasteful number, since it uses less digits than its factorization.

42278152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754980 (or 754976 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 42278152 is about 6502.1651778465. The cubic root of 42278152 is about 348.3683289143.

The spelling of 42278152 in words is "forty-two million, two hundred seventy-eight thousand, one hundred fifty-two".