42878001 has 8 divisors (see below), whose sum is σ = 57223584. Its totient is φ = 28558880.

The previous prime is 42877987. The next prime is 42878021. The reversal of 42878001 is 10087824.

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

It is a cyclic number.

It is not a de Polignac number, because 42878001 - 2¹¹ = 42875953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42878001.

It is not an unprimeable number, because it can be changed into a prime (42878021) 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, 2460 + ... + 9581.

It is an arithmetic number, because the mean of its divisors is an integer number (7152948).

Almost surely, 2^42878001 is an apocalyptic number.

It is an amenable number.

42878001 is a deficient number, since it is larger than the sum of its proper divisors (14345583).

42878001 is a wasteful number, since it uses less digits than its factorization.

42878001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13231.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 42878001 is about 6548.1295802695. The cubic root of 42878001 is about 350.0081657959.

The spelling of 42878001 in words is "forty-two million, eight hundred seventy-eight thousand, one".