42722319 has 4 divisors (see below), whose sum is σ = 56963096. Its totient is φ = 28481544.

The previous prime is 42722299. The next prime is 42722321. The reversal of 42722319 is 91322724.

42722319 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 not a de Polignac number, because 42722319 - 2¹⁵ = 42689551 is a prime.

It is a super-2 number, since 2×42722319² = 3650393081475522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42722219) 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, 7120384 + ... + 7120389.

It is an arithmetic number, because the mean of its divisors is an integer number (14240774).

Almost surely, 2^42722319 is an apocalyptic number.

42722319 is a deficient number, since it is larger than the sum of its proper divisors (14240777).

42722319 is a wasteful number, since it uses less digits than its factorization.

42722319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14240776.

The product of its digits is 6048, while the sum is 30.

The square root of 42722319 is about 6536.2312535589. The cubic root of 42722319 is about 349.5840473593.

The spelling of 42722319 in words is "forty-two million, seven hundred twenty-two thousand, three hundred nineteen".