422451535590 has 1024 divisors, whose sum is σ = 1441456128000. Its totient is φ = 87787929600.

The previous prime is 422451535573. The next prime is 422451535607. The reversal of 422451535590 is 95535154224.

422451535590 is a `hidden beast` number, since 4 + 2 + 2 + 4 + 5 + 1 + 53 + 5 + 590 = 666.

It is an interprime number because it is at equal distance from previous prime (422451535573) and next prime (422451535607).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 4355170422 + ... + 4355170518.

It is an arithmetic number, because the mean of its divisors is an integer number (1407672000).

Almost surely, 2^422451535590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422451535590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720728064000).

422451535590 is an abundant number, since it is smaller than the sum of its proper divisors (1019004592410).

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

422451535590 is a wasteful number, since it uses less digits than its factorization.

422451535590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 422451535590 in words is "four hundred twenty-two billion, four hundred fifty-one million, five hundred thirty-five thousand, five hundred ninety".