674721222 has 64 divisors (see below), whose sum is σ = 1575911424. Its totient is φ = 188606880.

The previous prime is 674721209. The next prime is 674721239. The reversal of 674721222 is 222127476.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457947 + ... + 459417.

It is an arithmetic number, because the mean of its divisors is an integer number (24623616).

Almost surely, 2^674721222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674721222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787955712).

674721222 is an abundant number, since it is smaller than the sum of its proper divisors (901190202).

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

674721222 is a wasteful number, since it uses less digits than its factorization.

674721222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713.

The product of its digits is 18816, while the sum is 33.

The square root of 674721222 is about 25975.3964743563. The cubic root of 674721222 is about 877.0845416026.

Adding to 674721222 its reverse (222127476), we get a palindrome (896848698).

The spelling of 674721222 in words is "six hundred seventy-four million, seven hundred twenty-one thousand, two hundred twenty-two".