704220228 has 18 divisors (see below), whose sum is σ = 1780112334. Its totient is φ = 234740064.

The previous prime is 704220193. The next prime is 704220229. The reversal of 704220228 is 822022407.

It can be written as a sum of positive squares in only one way, i.e., 501670404 + 202549824 = 22398^2 + 14232^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×704220228² = 991852259048743968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (704220229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9780801 + ... + 9780872.

Almost surely, 2^704220228 is an apocalyptic number.

It is an amenable number.

704220228 is an abundant number, since it is smaller than the sum of its proper divisors (1075892106).

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

704220228 is a wasteful number, since it uses less digits than its factorization.

704220228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19561683 (or 19561678 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 704220228 is about 26537.1480758577. The cubic root of 704220228 is about 889.6847884293.

The spelling of 704220228 in words is "seven hundred four million, two hundred twenty thousand, two hundred twenty-eight".