42722574 has 16 divisors (see below), whose sum is σ = 87529680. Its totient is φ = 13893440.

The previous prime is 42722573. The next prime is 42722587. The reversal of 42722574 is 47522724.

It is a happy number.

42722574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42722573) 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 7 ways as a sum of consecutive naturals, for example, 86589 + ... + 87080.

It is an arithmetic number, because the mean of its divisors is an integer number (5470605).

Almost surely, 2^42722574 is an apocalyptic number.

42722574 is an abundant number, since it is smaller than the sum of its proper divisors (44807106).

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

42722574 is a wasteful number, since it uses less digits than its factorization.

42722574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173715.

The product of its digits is 31360, while the sum is 33.

The square root of 42722574 is about 6536.2507601835. The cubic root of 42722574 is about 349.5847428877.

The spelling of 42722574 in words is "forty-two million, seven hundred twenty-two thousand, five hundred seventy-four".