422663072 has 48 divisors (see below), whose sum is σ = 897960672. Its totient is φ = 194676480.

The previous prime is 422663063. The next prime is 422663077. The reversal of 422663072 is 270366224.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (422663077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326747 + ... + 328037.

It is an arithmetic number, because the mean of its divisors is an integer number (18707514).

Almost surely, 2^422663072 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 422663072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448980336).

422663072 is an abundant number, since it is smaller than the sum of its proper divisors (475297600).

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

422663072 is a wasteful number, since it uses less digits than its factorization.

422663072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 422663072 is about 20558.7711695033. The cubic root of 422663072 is about 750.4667151387.

The spelling of 422663072 in words is "four hundred twenty-two million, six hundred sixty-three thousand, seventy-two".