422553340 has 48 divisors (see below), whose sum is σ = 978060384. Its totient is φ = 152064000.

The previous prime is 422553323. The next prime is 422553361. The reversal of 422553340 is 43355224.

It is a junction number, because it is equal to n+sod(n) for n = 422553299 and 422553308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11440 + ... + 31240.

It is an arithmetic number, because the mean of its divisors is an integer number (20376258).

Almost surely, 2^422553340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422553340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489030192).

422553340 is an abundant number, since it is smaller than the sum of its proper divisors (555507044).

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

422553340 is a wasteful number, since it uses less digits than its factorization.

422553340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19918 (or 19916 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 422553340 is about 20556.1022569942. The cubic root of 422553340 is about 750.4017640017.

The spelling of 422553340 in words is "four hundred twenty-two million, five hundred fifty-three thousand, three hundred forty".