422719500 has 192 divisors, whose sum is σ = 1422360576. Its totient is φ = 95558400.

The previous prime is 422719411. The next prime is 422719523. The reversal of 422719500 is 5917224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1333342 + ... + 1333658.

It is an arithmetic number, because the mean of its divisors is an integer number (7408128).

Almost surely, 2^422719500 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 422719500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711180288).

422719500 is an abundant number, since it is smaller than the sum of its proper divisors (999641076).

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

422719500 is a wasteful number, since it uses less digits than its factorization.

422719500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 422719500 is about 20560.1434819896. The cubic root of 422719500 is about 750.5001108891.

The spelling of 422719500 in words is "four hundred twenty-two million, seven hundred nineteen thousand, five hundred".