42931722 has 8 divisors (see below), whose sum is σ = 85863456. Its totient is φ = 14310572.

The previous prime is 42931711. The next prime is 42931723. The reversal of 42931722 is 22713924.

It is a sphenic number, since it is the product of 3 distinct primes.

42931722 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42931722.

It is not an unprimeable number, because it can be changed into a prime (42931723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3577638 + ... + 3577649.

It is an arithmetic number, because the mean of its divisors is an integer number (10732932).

Almost surely, 2^42931722 is an apocalyptic number.

42931722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42931722 is a wasteful number, since it uses less digits than its factorization.

42931722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7155292.

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

The square root of 42931722 is about 6552.2303073076. The cubic root of 42931722 is about 350.1542775638.

The spelling of 42931722 in words is "forty-two million, nine hundred thirty-one thousand, seven hundred twenty-two".