422723072 has 40 divisors (see below), whose sum is σ = 881367696. Its totient is φ = 202166272.

The previous prime is 422723069. The next prime is 422723101. The reversal of 422723072 is 270327224.

It is a happy number.

It is a super-2 number, since 2×422723072² = 357389591202234368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6173 + ... + 29724.

Almost surely, 2^422723072 is an apocalyptic number.

It is an amenable number.

422723072 is an abundant number, since it is smaller than the sum of its proper divisors (458644624).

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

422723072 is an equidigital number, since it uses as much as digits as its factorization.

422723072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35938 (or 35922 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 422723072 is about 20560.2303489042. The cubic root of 422723072 is about 750.5022248038.

The spelling of 422723072 in words is "four hundred twenty-two million, seven hundred twenty-three thousand, seventy-two".