422660500 has 96 divisors (see below), whose sum is σ = 967599360. Its totient is φ = 161078400.

The previous prime is 422660461. The next prime is 422660533. The reversal of 422660500 is 5066224.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1493359 + ... + 1493641.

It is an arithmetic number, because the mean of its divisors is an integer number (10079160).

Almost surely, 2^422660500 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 422660500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483799680).

422660500 is an abundant number, since it is smaller than the sum of its proper divisors (544938860).

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

422660500 is a wasteful number, since it uses less digits than its factorization.

422660500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 422660500 is about 20558.7086170314. The cubic root of 422660500 is about 750.4651928826.

The spelling of 422660500 in words is "four hundred twenty-two million, six hundred sixty thousand, five hundred".