422406408 has 32 divisors (see below), whose sum is σ = 1101931200. Its totient is φ = 134680128.

The previous prime is 422406389. The next prime is 422406409. The reversal of 422406408 is 804604224.

It is not an unprimeable number, because it can be changed into a prime (422406409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382063 + ... + 383166.

It is an arithmetic number, because the mean of its divisors is an integer number (34435350).

Almost surely, 2^422406408 is an apocalyptic number.

It is an amenable number.

422406408 is an abundant number, since it is smaller than the sum of its proper divisors (679524792).

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

422406408 is a wasteful number, since it uses less digits than its factorization.

422406408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765261 (or 765257 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 422406408 is about 20552.5280196865. The cubic root of 422406408 is about 750.3147763138.

The spelling of 422406408 in words is "four hundred twenty-two million, four hundred six thousand, four hundred eight".