494644220 has 72 divisors (see below), whose sum is σ = 1225536480. Its totient is φ = 167180160.

The previous prime is 494644217. The next prime is 494644237. The reversal of 494644220 is 22446494.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66026 + ... + 73134.

It is an arithmetic number, because the mean of its divisors is an integer number (17021340).

Almost surely, 2^494644220 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 494644220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612768240).

494644220 is an abundant number, since it is smaller than the sum of its proper divisors (730892260).

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

494644220 is a wasteful number, since it uses less digits than its factorization.

494644220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7203 (or 7194 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 494644220 is about 22240.5984631709. The cubic root of 494644220 is about 790.8564231534.

The spelling of 494644220 in words is "four hundred ninety-four million, six hundred forty-four thousand, two hundred twenty".