209472944 has 10 divisors (see below), whose sum is σ = 405853860. Its totient is φ = 104736464.

The previous prime is 209472919. The next prime is 209472953. The reversal of 209472944 is 449274902.

209472944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6546014 + ... + 6546045.

It is an arithmetic number, because the mean of its divisors is an integer number (40585386).

Almost surely, 2^209472944 is an apocalyptic number.

It is an amenable number.

209472944 is a deficient number, since it is larger than the sum of its proper divisors (196380916).

209472944 is a wasteful number, since it uses less digits than its factorization.

209472944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092067 (or 13092061 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 209472944 is about 14473.1801619409. The cubic root of 209472944 is about 593.8945120600.

The spelling of 209472944 in words is "two hundred nine million, four hundred seventy-two thousand, nine hundred forty-four".