209468152 has 16 divisors (see below), whose sum is σ = 415856160. Its totient is φ = 98573184.

The previous prime is 209468099. The next prime is 209468159. The reversal of 209468152 is 251864902.

It is a super-4 number, since 4×209468152⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209468159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769968 + ... + 770239.

It is an arithmetic number, because the mean of its divisors is an integer number (25991010).

Almost surely, 2^209468152 is an apocalyptic number.

It is an amenable number.

209468152 is a deficient number, since it is larger than the sum of its proper divisors (206388008).

209468152 is a wasteful number, since it uses less digits than its factorization.

209468152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540230 (or 1540226 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 209468152 is about 14473.0146134107. The cubic root of 209468152 is about 593.8899832902.

The spelling of 209468152 in words is "two hundred nine million, four hundred sixty-eight thousand, one hundred fifty-two".