422665488 has 240 divisors, whose sum is σ = 1474012800. Its totient is φ = 110315520.

The previous prime is 422665487. The next prime is 422665489. The reversal of 422665488 is 884566224.

422665488 is a `hidden beast` number, since 42 + 2 + 66 + 548 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (422665487) and next prime (422665489).

It is a super-2 number, since 2×422665488² = 357292229492556288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422665487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 555028 + ... + 555788.

It is an arithmetic number, because the mean of its divisors is an integer number (6141720).

Almost surely, 2^422665488 is an apocalyptic number.

422665488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422665488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737006400).

422665488 is an abundant number, since it is smaller than the sum of its proper divisors (1051347312).

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

422665488 is a wasteful number, since it uses less digits than its factorization.

422665488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 821 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 422665488 is about 20558.8299277950. The cubic root of 422665488 is about 750.4681450595.

The spelling of 422665488 in words is "four hundred twenty-two million, six hundred sixty-five thousand, four hundred eighty-eight".