289309152 has 48 divisors (see below), whose sum is σ = 828479232. Its totient is φ = 87669120.

The previous prime is 289309129. The next prime is 289309169. The reversal of 289309152 is 251903982.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 289309152.

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, 135928 + ... + 138039.

It is an arithmetic number, because the mean of its divisors is an integer number (17259984).

Almost surely, 2^289309152 is an apocalyptic number.

289309152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

289309152 is an abundant number, since it is smaller than the sum of its proper divisors (539170080).

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

289309152 is a wasteful number, since it uses less digits than its factorization.

289309152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273991 (or 273983 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 289309152 is about 17009.0902754968. The cubic root of 289309152 is about 661.3845681271.

The spelling of 289309152 in words is "two hundred eighty-nine million, three hundred nine thousand, one hundred fifty-two".