199623448 has 8 divisors (see below), whose sum is σ = 374293980. Its totient is φ = 99811720.

The previous prime is 199623421. The next prime is 199623451. The reversal of 199623448 is 844326991.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 199623398 and 199623407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12476458 + ... + 12476473.

Almost surely, 2^199623448 is an apocalyptic number.

It is an amenable number.

199623448 is a deficient number, since it is larger than the sum of its proper divisors (174670532).

199623448 is a wasteful number, since it uses less digits than its factorization.

199623448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24952937 (or 24952933 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 199623448 is about 14128.8162278373. The cubic root of 199623448 is about 584.4363021586.

The spelling of 199623448 in words is "one hundred ninety-nine million, six hundred twenty-three thousand, four hundred forty-eight".