289993652 has 24 divisors (see below), whose sum is σ = 550711392. Its totient is φ = 132818400.

The previous prime is 289993651. The next prime is 289993657. The reversal of 289993652 is 256399982.

It is a junction number, because it is equal to n+sod(n) for n = 289993594 and 289993603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289993651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14474 + ... + 28097.

It is an arithmetic number, because the mean of its divisors is an integer number (22946308).

Almost surely, 2^289993652 is an apocalyptic number.

It is an amenable number.

289993652 is a deficient number, since it is larger than the sum of its proper divisors (260717740).

289993652 is a wasteful number, since it uses less digits than its factorization.

289993652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42719 (or 42717 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 53.

The square root of 289993652 is about 17029.1999812087. The cubic root of 289993652 is about 661.9057651025.

The spelling of 289993652 in words is "two hundred eighty-nine million, nine hundred ninety-three thousand, six hundred fifty-two".