495133820 has 48 divisors (see below), whose sum is σ = 1100705760. Its totient is φ = 186767616.

The previous prime is 495133817. The next prime is 495133867. The reversal of 495133820 is 28331594.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15014 + ... + 34866.

It is an arithmetic number, because the mean of its divisors is an integer number (22931370).

Almost surely, 2^495133820 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 495133820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550352880).

495133820 is an abundant number, since it is smaller than the sum of its proper divisors (605571940).

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

495133820 is a wasteful number, since it uses less digits than its factorization.

495133820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19934 (or 19932 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 495133820 is about 22251.6026389112. The cubic root of 495133820 is about 791.1172676202.

The spelling of 495133820 in words is "four hundred ninety-five million, one hundred thirty-three thousand, eight hundred twenty".