42790049 has 8 divisors (see below), whose sum is σ = 43584480. Its totient is φ = 42003136.

The previous prime is 42790039. The next prime is 42790061. The reversal of 42790049 is 94009724.

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 42790049 - 2⁸ = 42789793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42790039) 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, 10322 + ... + 13860.

It is an arithmetic number, because the mean of its divisors is an integer number (5448060).

Almost surely, 2^42790049 is an apocalyptic number.

It is an amenable number.

42790049 is a deficient number, since it is larger than the sum of its proper divisors (794431).

42790049 is a wasteful number, since it uses less digits than its factorization.

42790049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 42790049 is about 6541.4103219413. The cubic root of 42790049 is about 349.7686879779.

The spelling of 42790049 in words is "forty-two million, seven hundred ninety thousand, forty-nine".