704222138 has 8 divisors (see below), whose sum is σ = 1092758580. Its totient is φ = 339969280.

The previous prime is 704222111. The next prime is 704222149. The reversal of 704222138 is 831222407.

It can be written as a sum of positive squares in 2 ways, for example, as 678446209 + 25775929 = 26047^2 + 5077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 704222138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6070823 + ... + 6070938.

Almost surely, 2^704222138 is an apocalyptic number.

704222138 is a deficient number, since it is larger than the sum of its proper divisors (388536442).

704222138 is a wasteful number, since it uses less digits than its factorization.

704222138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12141792.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 704222138 is about 26537.1840631217. The cubic root of 704222138 is about 889.6855927688.

The spelling of 704222138 in words is "seven hundred four million, two hundred twenty-two thousand, one hundred thirty-eight".