422487780 has 192 divisors, whose sum is σ = 1424860416. Its totient is φ = 92160000.

The previous prime is 422487763. The next prime is 422487787. The reversal of 422487780 is 87784224.

It is not an unprimeable number, because it can be changed into a prime (422487787) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351180 + ... + 352380.

It is an arithmetic number, because the mean of its divisors is an integer number (7421148).

Almost surely, 2^422487780 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 422487780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712430208).

422487780 is an abundant number, since it is smaller than the sum of its proper divisors (1002372636).

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

422487780 is a wasteful number, since it uses less digits than its factorization.

422487780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 422487780 is about 20554.5075348450. The cubic root of 422487780 is about 750.3629532138.

The spelling of 422487780 in words is "four hundred twenty-two million, four hundred eighty-seven thousand, seven hundred eighty".