422697716 has 36 divisors (see below), whose sum is σ = 871416000. Its totient is φ = 178856496.

The previous prime is 422697713. The next prime is 422697721. The reversal of 422697716 is 617796224.

It is a super-2 number, since 2×422697716² = 357346718223233312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422697713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1835 + ... + 29133.

It is an arithmetic number, because the mean of its divisors is an integer number (24206000).

Almost surely, 2^422697716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422697716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435708000).

422697716 is an abundant number, since it is smaller than the sum of its proper divisors (448718284).

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

422697716 is a wasteful number, since it uses less digits than its factorization.

422697716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27396 (or 27387 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 422697716 is about 20559.6137123245. The cubic root of 422697716 is about 750.4872188293.

The spelling of 422697716 in words is "four hundred twenty-two million, six hundred ninety-seven thousand, seven hundred sixteen".