422402544 has 120 divisors (see below), whose sum is σ = 1248268320. Its totient is φ = 133072896.

The previous prime is 422402543. The next prime is 422402549. The reversal of 422402544 is 445204224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422402543) 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, 294052 + ... + 295484.

It is an arithmetic number, because the mean of its divisors is an integer number (10402236).

Almost surely, 2^422402544 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 422402544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624134160).

422402544 is an abundant number, since it is smaller than the sum of its proper divisors (825865776).

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

422402544 is a wasteful number, since it uses less digits than its factorization.

422402544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 422402544 is about 20552.4340164371. The cubic root of 422402544 is about 750.3124884499.

Adding to 422402544 its reverse (445204224), we get a palindrome (867606768).

The spelling of 422402544 in words is "four hundred twenty-two million, four hundred two thousand, five hundred forty-four".