42884407 has 4 divisors (see below), whose sum is σ = 43106800. Its totient is φ = 42662016.

The previous prime is 42884399. The next prime is 42884441. The reversal of 42884407 is 70448824.

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

It is a cyclic number.

It is not a de Polignac number, because 42884407 - 2³ = 42884399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42884467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110907 + ... + 111292.

It is an arithmetic number, because the mean of its divisors is an integer number (10776700).

Almost surely, 2^42884407 is an apocalyptic number.

42884407 is a deficient number, since it is larger than the sum of its proper divisors (222393).

42884407 is a wasteful number, since it uses less digits than its factorization.

42884407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222392.

The product of its (nonzero) digits is 57344, while the sum is 37.

The square root of 42884407 is about 6548.6187093157. The cubic root of 42884407 is about 350.0255954071.

The spelling of 42884407 in words is "forty-two million, eight hundred eighty-four thousand, four hundred seven".