422545477200 has 480 divisors, whose sum is σ = 1695623949312. Its totient is φ = 87381504000.

The previous prime is 422545477187. The next prime is 422545477229. The reversal of 422545477200 is 2774545224.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19485564 + ... + 19507236.

Almost surely, 2^422545477200 is an apocalyptic number.

422545477200 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 422545477200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847811974656).

422545477200 is an abundant number, since it is smaller than the sum of its proper divisors (1273078472112).

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

422545477200 is a wasteful number, since it uses less digits than its factorization.

422545477200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21923 (or 21912 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 42.

The spelling of 422545477200 in words is "four hundred twenty-two billion, five hundred forty-five million, four hundred seventy-seven thousand, two hundred".