422918442 has 32 divisors (see below), whose sum is σ = 951724800. Its totient is φ = 139186944.

The previous prime is 422918423. The next prime is 422918443. The reversal of 422918442 is 244819224.

It is a junction number, because it is equal to n+sod(n) for n = 422918397 and 422918406.

It is not an unprimeable number, because it can be changed into a prime (422918443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45303 + ... + 53834.

It is an arithmetic number, because the mean of its divisors is an integer number (29741400).

Almost surely, 2^422918442 is an apocalyptic number.

422918442 is an abundant number, since it is smaller than the sum of its proper divisors (528806358).

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

422918442 is a wasteful number, since it uses less digits than its factorization.

422918442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99227 (or 99221 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 422918442 is about 20564.9809627921. The cubic root of 422918442 is about 750.6178269135.

The spelling of 422918442 in words is "four hundred twenty-two million, nine hundred eighteen thousand, four hundred forty-two".