422745786 has 24 divisors (see below), whose sum is σ = 928852704. Its totient is φ = 138930120.

The previous prime is 422745781. The next prime is 422745803. The reversal of 422745786 is 687547224.

It is a happy number.

422745786 is a `hidden beast` number, since 4 + 2 + 2 + 74 + 578 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (422745781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164116 + ... + 166671.

It is an arithmetic number, because the mean of its divisors is an integer number (38702196).

Almost surely, 2^422745786 is an apocalyptic number.

422745786 is an abundant number, since it is smaller than the sum of its proper divisors (506106918).

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

422745786 is a wasteful number, since it uses less digits than its factorization.

422745786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330866 (or 330863 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 422745786 is about 20560.7827185640. The cubic root of 422745786 is about 750.5156667025.

The spelling of 422745786 in words is "four hundred twenty-two million, seven hundred forty-five thousand, seven hundred eighty-six".