289904452 has 24 divisors (see below), whose sum is σ = 527660672. Its totient is φ = 139255200.

The previous prime is 289904449. The next prime is 289904453. The reversal of 289904452 is 254409982.

It is a happy number.

289904452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 289904399 and 289904408.

It is not an unprimeable number, because it can be changed into a prime (289904453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3324 + ... + 24307.

Almost surely, 2^289904452 is an apocalyptic number.

It is an amenable number.

289904452 is a deficient number, since it is larger than the sum of its proper divisors (237756220).

289904452 is a wasteful number, since it uses less digits than its factorization.

289904452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27739 (or 27737 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 289904452 is about 17026.5807489349. The cubic root of 289904452 is about 661.8378922962.

The spelling of 289904452 in words is "two hundred eighty-nine million, nine hundred four thousand, four hundred fifty-two".