42379689 has 32 divisors (see below), whose sum is σ = 64460160. Its totient is φ = 24537600.

The previous prime is 42379669. The next prime is 42379693. The reversal of 42379689 is 98697324.

It is not a de Polignac number, because 42379689 - 2¹⁷ = 42248617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42379619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74197 + ... + 74765.

It is an arithmetic number, because the mean of its divisors is an integer number (2014380).

Almost surely, 2^42379689 is an apocalyptic number.

It is an amenable number.

42379689 is a deficient number, since it is larger than the sum of its proper divisors (22080471).

42379689 is a wasteful number, since it uses less digits than its factorization.

42379689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681.

The product of its digits is 653184, while the sum is 48.

The square root of 42379689 is about 6509.9684331032. The cubic root of 42379689 is about 348.6469913273.

The spelling of 42379689 in words is "forty-two million, three hundred seventy-nine thousand, six hundred eighty-nine".