422085666492 has 144 divisors (see below), whose sum is σ = 1260723172800. Its totient is φ = 116548678656.

The previous prime is 422085666479. The next prime is 422085666521. The reversal of 422085666492 is 294666580224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1237368 + ... + 1541184.

Almost surely, 2^422085666492 is an apocalyptic number.

422085666492 is a gapful number since it is divisible by the number (42) 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 422085666492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630361586400).

422085666492 is an abundant number, since it is smaller than the sum of its proper divisors (838637506308).

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

422085666492 is a wasteful number, since it uses less digits than its factorization.

422085666492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304020 (or 304015 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 422085666492 in words is "four hundred twenty-two billion, eighty-five million, six hundred sixty-six thousand, four hundred ninety-two".