422640036 has 72 divisors (see below), whose sum is σ = 1314890304. Its totient is φ = 111464640.

The previous prime is 422640007. The next prime is 422640037. The reversal of 422640036 is 630046224.

422640036 is a `hidden beast` number, since 4 + 226 + 400 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 422639991 and 422640009.

It is not an unprimeable number, because it can be changed into a prime (422640037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61230 + ... + 67781.

Almost surely, 2^422640036 is an apocalyptic number.

It is an amenable number.

422640036 is an abundant number, since it is smaller than the sum of its proper divisors (892250268).

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

422640036 is a wasteful number, since it uses less digits than its factorization.

422640036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129041 (or 129036 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 422640036 is about 20558.2109143768. The cubic root of 422640036 is about 750.4530809018.

The spelling of 422640036 in words is "four hundred twenty-two million, six hundred forty thousand, thirty-six".