42918790 has 16 divisors (see below), whose sum is σ = 78343200. Its totient is φ = 16925440.

The previous prime is 42918781. The next prime is 42918797. The reversal of 42918790 is 9781924.

42918790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×42918790³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42918797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29515 + ... + 30934.

It is an arithmetic number, because the mean of its divisors is an integer number (4896450).

Almost surely, 2^42918790 is an apocalyptic number.

42918790 is a deficient number, since it is larger than the sum of its proper divisors (35424410).

42918790 is a wasteful number, since it uses less digits than its factorization.

42918790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60527.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 42918790 is about 6551.2433934330. The cubic root of 42918790 is about 350.1191159191.

The spelling of 42918790 in words is "forty-two million, nine hundred eighteen thousand, seven hundred ninety".