209714064 has 40 divisors (see below), whose sum is σ = 619156800. Its totient is φ = 59918208.

The previous prime is 209714033. The next prime is 209714081. The reversal of 209714064 is 460417902.

It is a happy 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, 311739 + ... + 312410.

It is an arithmetic number, because the mean of its divisors is an integer number (15478920).

Almost surely, 2^209714064 is an apocalyptic number.

209714064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

209714064 is an abundant number, since it is smaller than the sum of its proper divisors (409442736).

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

209714064 is a wasteful number, since it uses less digits than its factorization.

209714064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624167 (or 624161 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 209714064 is about 14481.5076563181. The cubic root of 209714064 is about 594.1222979375.

It can be divided in two parts, 2097 and 14064, that added together give a palindrome (16161).

The spelling of 209714064 in words is "two hundred nine million, seven hundred fourteen thousand, sixty-four".