209480672 has 48 divisors (see below), whose sum is σ = 421902432. Its totient is φ = 102359040.

The previous prime is 209480653. The next prime is 209480729. The reversal of 209480672 is 276084902.

It is a congruent number.

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, 310928 + ... + 311600.

It is an arithmetic number, because the mean of its divisors is an integer number (8789634).

Almost surely, 2^209480672 is an apocalyptic number.

It is an amenable number.

209480672 is an abundant number, since it is smaller than the sum of its proper divisors (212421760).

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

209480672 is a wasteful number, since it uses less digits than its factorization.

209480672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 209480672 is about 14473.4471360488. The cubic root of 209480672 is about 593.9018154063.

The spelling of 209480672 in words is "two hundred nine million, four hundred eighty thousand, six hundred seventy-two".