999449422 has 8 divisors (see below), whose sum is σ = 1501194096. Its totient is φ = 499051392.

The previous prime is 999449401. The next prime is 999449453. The reversal of 999449422 is 224944999.

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

It is a super-2 number, since 2×999449422² = 1997798294272268168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 999449422.

It is a congruent number.

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, 334803 + ... + 337774.

It is an arithmetic number, because the mean of its divisors is an integer number (187649262).

Almost surely, 2^999449422 is an apocalyptic number.

999449422 is a deficient number, since it is larger than the sum of its proper divisors (501744674).

999449422 is a wasteful number, since it uses less digits than its factorization.

999449422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673322.

The product of its digits is 1679616, while the sum is 52.

The square root of 999449422 is about 31614.0700005551. The cubic root of 999449422 is about 999.8164403079.

The spelling of 999449422 in words is "nine hundred ninety-nine million, four hundred forty-nine thousand, four hundred twenty-two".