42722958 has 32 divisors (see below), whose sum is σ = 87549696. Its totient is φ = 13894848.

The previous prime is 42722917. The next prime is 42722993. The reversal of 42722958 is 85922724.

It is a super-2 number, since 2×42722958² = 3650502280539528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44641 + ... + 45587.

It is an arithmetic number, because the mean of its divisors is an integer number (2735928).

Almost surely, 2^42722958 is an apocalyptic number.

42722958 is an abundant number, since it is smaller than the sum of its proper divisors (44826738).

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

42722958 is a wasteful number, since it uses less digits than its factorization.

42722958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128.

The product of its digits is 80640, while the sum is 39.

The square root of 42722958 is about 6536.2801347555. The cubic root of 42722958 is about 349.5857902663.

The spelling of 42722958 in words is "forty-two million, seven hundred twenty-two thousand, nine hundred fifty-eight".