42918490 has 16 divisors (see below), whose sum is σ = 77565600. Its totient is φ = 17098000.

The previous prime is 42918487. The next prime is 42918509. The reversal of 42918490 is 9481924.

It is a happy number.

42918490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 6040 + ... + 11059.

It is an arithmetic number, because the mean of its divisors is an integer number (4847850).

Almost surely, 2^42918490 is an apocalyptic number.

42918490 is a deficient number, since it is larger than the sum of its proper divisors (34647110).

42918490 is a wasteful number, since it uses less digits than its factorization.

42918490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17357.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 42918490 is about 6551.2204969761. The cubic root of 42918490 is about 350.1183001461.

The spelling of 42918490 in words is "forty-two million, nine hundred eighteen thousand, four hundred ninety".