289918396 has 12 divisors (see below), whose sum is σ = 508208400. Its totient is φ = 144716000.

The previous prime is 289918367. The next prime is 289918429. The reversal of 289918396 is 693819982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58105 + ... + 62896.

It is an arithmetic number, because the mean of its divisors is an integer number (42350700).

Almost surely, 2^289918396 is an apocalyptic number.

It is an amenable number.

289918396 is a deficient number, since it is larger than the sum of its proper divisors (218290004).

289918396 is a wasteful number, since it uses less digits than its factorization.

289918396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121604 (or 121602 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The square root of 289918396 is about 17026.9902214102. The cubic root of 289918396 is about 661.8485032861.

The spelling of 289918396 in words is "two hundred eighty-nine million, nine hundred eighteen thousand, three hundred ninety-six".