289411388 has 12 divisors (see below), whose sum is σ = 578822832. Its totient is φ = 124033440.

The previous prime is 289411379. The next prime is 289411393. The reversal of 289411388 is 883114982.

289411388 is an admirable number.

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, 5168033 + ... + 5168088.

It is an arithmetic number, because the mean of its divisors is an integer number (48235236).

Almost surely, 2^289411388 is an apocalyptic number.

289411388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

289411388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

289411388 is a wasteful number, since it uses less digits than its factorization.

289411388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10336132 (or 10336130 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 289411388 is about 17012.0953441956. The cubic root of 289411388 is about 661.4624655930.

The spelling of 289411388 in words is "two hundred eighty-nine million, four hundred eleven thousand, three hundred eighty-eight".