42660790 has 16 divisors (see below), whose sum is σ = 77762880. Its totient is φ = 16848000.

The previous prime is 42660781. The next prime is 42660809. The reversal of 42660790 is 9706624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26211 + ... + 27790.

It is an arithmetic number, because the mean of its divisors is an integer number (4860180).

Almost surely, 2^42660790 is an apocalyptic number.

42660790 is a deficient number, since it is larger than the sum of its proper divisors (35102090).

42660790 is a wasteful number, since it uses less digits than its factorization.

42660790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54087.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 42660790 is about 6531.5227933461. The cubic root of 42660790 is about 349.4161422167.

It can be divided in two parts, 426 and 60790, that added together give a palindrome (61216).

The spelling of 42660790 in words is "forty-two million, six hundred sixty thousand, seven hundred ninety".