42813904 has 20 divisors (see below), whose sum is σ = 94802464. Its totient is φ = 18348768.

The previous prime is 42813893. The next prime is 42813917. The reversal of 42813904 is 40931824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191022 + ... + 191245.

Almost surely, 2^42813904 is an apocalyptic number.

It is an amenable number.

42813904 is an abundant number, since it is smaller than the sum of its proper divisors (51988560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42813904 is a wasteful number, since it uses less digits than its factorization.

42813904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382282 (or 382276 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 42813904 is about 6543.2334514367. The cubic root of 42813904 is about 349.8336733519.

The spelling of 42813904 in words is "forty-two million, eight hundred thirteen thousand, nine hundred four".