421999182 has 96 divisors (see below), whose sum is σ = 1029210624. Its totient is φ = 123868800.

The previous prime is 421999181. The next prime is 421999189. The reversal of 421999182 is 281999124.

It is a super-3 number, since 3×421999182³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421999181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1274757 + ... + 1275087.

It is an arithmetic number, because the mean of its divisors is an integer number (10720944).

Almost surely, 2^421999182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421999182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514605312).

421999182 is an abundant number, since it is smaller than the sum of its proper divisors (607211442).

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

421999182 is a wasteful number, since it uses less digits than its factorization.

421999182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 421999182 is about 20542.6186743560. The cubic root of 421999182 is about 750.0735821140.

The spelling of 421999182 in words is "four hundred twenty-one million, nine hundred ninety-nine thousand, one hundred eighty-two".