999245722 has 8 divisors (see below), whose sum is σ = 1513709172. Its totient is φ = 494676000.

The previous prime is 999245719. The next prime is 999245743. The reversal of 999245722 is 227542999.

It can be written as a sum of positive squares in 2 ways, for example, as 998623201 + 622521 = 31601^2 + 789^2 .

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

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, 2473179 + ... + 2473582.

Almost surely, 2^999245722 is an apocalyptic number.

999245722 is a deficient number, since it is larger than the sum of its proper divisors (514463450).

999245722 is a wasteful number, since it uses less digits than its factorization.

999245722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946864.

The product of its digits is 816480, while the sum is 49.

The square root of 999245722 is about 31610.8481695762. The cubic root of 999245722 is about 999.7485107585.

The spelling of 999245722 in words is "nine hundred ninety-nine million, two hundred forty-five thousand, seven hundred twenty-two".