42904382 has 4 divisors (see below), whose sum is σ = 64356576. Its totient is φ = 21452190.

The previous prime is 42904357. The next prime is 42904429. The reversal of 42904382 is 28340924.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×42904382³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10726094 + ... + 10726097.

It is an arithmetic number, because the mean of its divisors is an integer number (16089144).

Almost surely, 2^42904382 is an apocalyptic number.

42904382 is a deficient number, since it is larger than the sum of its proper divisors (21452194).

42904382 is a wasteful number, since it uses less digits than its factorization.

42904382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21452193.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 42904382 is about 6550.1436625466. The cubic root of 42904382 is about 350.0799327640.

The spelling of 42904382 in words is "forty-two million, nine hundred four thousand, three hundred eighty-two".