422765720 has 64 divisors (see below), whose sum is σ = 1031940000. Its totient is φ = 154948608.

The previous prime is 422765671. The next prime is 422765731. The reversal of 422765720 is 27567224.

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 15 ways as a sum of consecutive naturals, for example, 69356 + ... + 75204.

Almost surely, 2^422765720 is an apocalyptic number.

422765720 is a gapful number since it is divisible by the number (40) 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 422765720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515970000).

422765720 is an abundant number, since it is smaller than the sum of its proper divisors (609174280).

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

422765720 is a wasteful number, since it uses less digits than its factorization.

422765720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6012 (or 6008 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 422765720 is about 20561.2674706595. The cubic root of 422765720 is about 750.5274630308.

The spelling of 422765720 in words is "four hundred twenty-two million, seven hundred sixty-five thousand, seven hundred twenty".