999999448 has 48 divisors (see below), whose sum is σ = 2227569120. Its totient is φ = 419444928.

The previous prime is 999999433. The next prime is 999999487. The reversal of 999999448 is 844999999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8715 + ... + 45562.

It is an arithmetic number, because the mean of its divisors is an integer number (46407690).

Almost surely, 2^999999448 is an apocalyptic number.

999999448 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

999999448 is an abundant number, since it is smaller than the sum of its proper divisors (1227569672).

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

999999448 is a wasteful number, since it uses less digits than its factorization.

999999448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54344 (or 54333 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 70.

The square root of 999999448 is about 31622.7678737962. The cubic root of 999999448 is about 999.9998160000. Note that the first 3 decimals are identical.

The spelling of 999999448 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, four hundred forty-eight".