499223790 has 128 divisors (see below), whose sum is σ = 1469059200. Its totient is φ = 119854080.

The previous prime is 499223771. The next prime is 499223827. The reversal of 499223790 is 97322994.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 142176 + ... + 145644.

It is an arithmetic number, because the mean of its divisors is an integer number (11477025).

Almost surely, 2^499223790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499223790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734529600).

499223790 is an abundant number, since it is smaller than the sum of its proper divisors (969835410).

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

499223790 is a wasteful number, since it uses less digits than its factorization.

499223790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539 (or 3533 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 499223790 is about 22343.3164503392. The cubic root of 499223790 is about 793.2895944077.

It can be divided in two parts, 4992 and 23790, that added together give a palindrome (28782).

The spelling of 499223790 in words is "four hundred ninety-nine million, two hundred twenty-three thousand, seven hundred ninety".