42808790 has 8 divisors (see below), whose sum is σ = 77055840. Its totient is φ = 17123512.

The previous prime is 42808781. The next prime is 42808823. The reversal of 42808790 is 9780824.

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, 2140430 + ... + 2140449.

It is an arithmetic number, because the mean of its divisors is an integer number (9631980).

Almost surely, 2^42808790 is an apocalyptic number.

42808790 is a deficient number, since it is larger than the sum of its proper divisors (34247050).

42808790 is a wasteful number, since it uses less digits than its factorization.

42808790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280886.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 42808790 is about 6542.8426543820. The cubic root of 42808790 is about 349.8197439156.

The spelling of 42808790 in words is "forty-two million, eight hundred eight thousand, seven hundred ninety".