42790377 has 24 divisors (see below), whose sum is σ = 70276896. Its totient is φ = 23011968.

The previous prime is 42790361. The next prime is 42790379. The reversal of 42790377 is 77309724.

It is not a de Polignac number, because 42790377 - 2⁴ = 42790361 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42790379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6063 + ... + 11060.

It is an arithmetic number, because the mean of its divisors is an integer number (2928204).

Almost surely, 2^42790377 is an apocalyptic number.

It is an amenable number.

42790377 is a deficient number, since it is larger than the sum of its proper divisors (27486519).

42790377 is a wasteful number, since it uses less digits than its factorization.

42790377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17157 (or 17150 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 42790377 is about 6541.4353929394. The cubic root of 42790377 is about 349.7695816735.

The spelling of 42790377 in words is "forty-two million, seven hundred ninety thousand, three hundred seventy-seven".