422045520 has 80 divisors (see below), whose sum is σ = 1408993152. Its totient is φ = 103887360.

The previous prime is 422045509. The next prime is 422045521. The reversal of 422045520 is 25540224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422045521) 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, 64516 + ... + 70755.

Almost surely, 2^422045520 is an apocalyptic number.

422045520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422045520 is an abundant number, since it is smaller than the sum of its proper divisors (986947632).

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

422045520 is a wasteful number, since it uses less digits than its factorization.

422045520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135300 (or 135294 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 422045520 is about 20543.7464937630. The cubic root of 422045520 is about 750.1010352774.

Adding to 422045520 its reverse (25540224), we get a palindrome (447585744).

The spelling of 422045520 in words is "four hundred twenty-two million, forty-five thousand, five hundred twenty".