199407648 has 48 divisors (see below), whose sum is σ = 571034016. Its totient is φ = 60426240.

The previous prime is 199407623. The next prime is 199407667. The reversal of 199407648 is 846704991.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 199407597 and 199407606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93361 + ... + 95472.

It is an arithmetic number, because the mean of its divisors is an integer number (11896542).

Almost surely, 2^199407648 is an apocalyptic number.

It is an amenable number.

199407648 is an abundant number, since it is smaller than the sum of its proper divisors (371626368).

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

199407648 is a wasteful number, since it uses less digits than its factorization.

199407648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188857 (or 188849 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 199407648 is about 14121.1772880309. The cubic root of 199407648 is about 584.2256274611.

The spelling of 199407648 in words is "one hundred ninety-nine million, four hundred seven thousand, six hundred forty-eight".