209080464 has 40 divisors (see below), whose sum is σ = 544027680. Its totient is φ = 69189888.

The previous prime is 209080463. The next prime is 209080471. The reversal of 209080464 is 464080902.

It is not an unprimeable number, because it can be changed into a prime (209080463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8997 + ... + 22340.

It is an arithmetic number, because the mean of its divisors is an integer number (13600692).

Almost surely, 2^209080464 is an apocalyptic number.

209080464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

209080464 is an abundant number, since it is smaller than the sum of its proper divisors (334947216).

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

209080464 is a wasteful number, since it uses less digits than its factorization.

209080464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31487 (or 31481 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 209080464 is about 14459.6149326322. The cubic root of 209080464 is about 593.5233623812.

The spelling of 209080464 in words is "two hundred nine million, eighty thousand, four hundred sixty-four".