209912048 has 10 divisors (see below), whose sum is σ = 406704624. Its totient is φ = 104956016.

The previous prime is 209912009. The next prime is 209912083. The reversal of 209912048 is 840219902.

It is a junction number, because it is equal to n+sod(n) for n = 209911999 and 209912017.

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, 6559736 + ... + 6559767.

Almost surely, 2^209912048 is an apocalyptic number.

It is an amenable number.

209912048 is a deficient number, since it is larger than the sum of its proper divisors (196792576).

209912048 is a wasteful number, since it uses less digits than its factorization.

209912048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13119511 (or 13119505 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 209912048 is about 14488.3417960787. The cubic root of 209912048 is about 594.3092027646.

The spelling of 209912048 in words is "two hundred nine million, nine hundred twelve thousand, forty-eight".