42052278 has 8 divisors (see below), whose sum is σ = 84104568. Its totient is φ = 14017424.

The previous prime is 42052277. The next prime is 42052319. The reversal of 42052278 is 87225024.

It is a sphenic number, since it is the product of 3 distinct primes.

42052278 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42052277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504351 + ... + 3504362.

It is an arithmetic number, because the mean of its divisors is an integer number (10513071).

Almost surely, 2^42052278 is an apocalyptic number.

42052278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42052278 is a wasteful number, since it uses less digits than its factorization.

42052278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008718.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 42052278 is about 6484.7727793655. The cubic root of 42052278 is about 347.7468266923.

The spelling of 42052278 in words is "forty-two million, fifty-two thousand, two hundred seventy-eight".