42999422 has 4 divisors (see below), whose sum is σ = 64499136. Its totient is φ = 21499710.

The previous prime is 42999419. The next prime is 42999433. The reversal of 42999422 is 22499924.

42999422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42999422.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10749854 + ... + 10749857.

It is an arithmetic number, because the mean of its divisors is an integer number (16124784).

Almost surely, 2^42999422 is an apocalyptic number.

42999422 is a deficient number, since it is larger than the sum of its proper divisors (21499714).

42999422 is a wasteful number, since it uses less digits than its factorization.

42999422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21499713.

The product of its digits is 93312, while the sum is 41.

The square root of 42999422 is about 6557.3944520671. The cubic root of 42999422 is about 350.3382362920.

The spelling of 42999422 in words is "forty-two million, nine hundred ninety-nine thousand, four hundred twenty-two".