42792878 has 8 divisors (see below), whose sum is σ = 65002080. Its totient is φ = 21125520.

The previous prime is 42792823. The next prime is 42792881. The reversal of 42792878 is 87829724.

It is a happy number.

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

It is a congruent 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, 135263 + ... + 135578.

It is an arithmetic number, because the mean of its divisors is an integer number (8125260).

Almost surely, 2^42792878 is an apocalyptic number.

42792878 is a deficient number, since it is larger than the sum of its proper divisors (22209202).

42792878 is a wasteful number, since it uses less digits than its factorization.

42792878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270922.

The product of its digits is 451584, while the sum is 47.

The square root of 42792878 is about 6541.6265561403. The cubic root of 42792878 is about 349.7763959523.

The spelling of 42792878 in words is "forty-two million, seven hundred ninety-two thousand, eight hundred seventy-eight".