42979382 has 8 divisors (see below), whose sum is σ = 64535400. Its totient is φ = 21467584.

The previous prime is 42979381. The next prime is 42979399. The reversal of 42979382 is 28397924.

42979382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×42979382³ (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 (42979381) 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 3 ways as a sum of consecutive naturals, for example, 8507 + ... + 12582.

It is an arithmetic number, because the mean of its divisors is an integer number (8066925).

Almost surely, 2^42979382 is an apocalyptic number.

42979382 is a deficient number, since it is larger than the sum of its proper divisors (21556018).

42979382 is a wasteful number, since it uses less digits than its factorization.

42979382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22110.

The product of its digits is 217728, while the sum is 44.

The square root of 42979382 is about 6555.8662280434. The cubic root of 42979382 is about 350.2838024656.

The spelling of 42979382 in words is "forty-two million, nine hundred seventy-nine thousand, three hundred eighty-two".