422697744 has 160 divisors (see below), whose sum is σ = 1400029440. Its totient is φ = 119605248.

The previous prime is 422697727. The next prime is 422697767. The reversal of 422697744 is 447796224.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 422697744.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 341094 + ... + 342330.

It is an arithmetic number, because the mean of its divisors is an integer number (8750184).

Almost surely, 2^422697744 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 422697744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700014720).

422697744 is an abundant number, since it is smaller than the sum of its proper divisors (977331696).

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

422697744 is a wasteful number, since it uses less digits than its factorization.

422697744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1362 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 422697744 is about 20559.6143932711. The cubic root of 422697744 is about 750.4872354003.

The spelling of 422697744 in words is "four hundred twenty-two million, six hundred ninety-seven thousand, seven hundred forty-four".