289240396 has 12 divisors (see below), whose sum is σ = 519851248. Its totient is φ = 140711472.

The previous prime is 289240379. The next prime is 289240423. The reversal of 289240396 is 693042982.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 977016 + ... + 977311.

Almost surely, 2^289240396 is an apocalyptic number.

It is an amenable number.

289240396 is a deficient number, since it is larger than the sum of its proper divisors (230610852).

289240396 is a wasteful number, since it uses less digits than its factorization.

289240396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954368 (or 1954366 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 289240396 is about 17007.0690008596. The cubic root of 289240396 is about 661.3321700149.

The spelling of 289240396 in words is "two hundred eighty-nine million, two hundred forty thousand, three hundred ninety-six".