289441812 has 24 divisors (see below), whose sum is σ = 736761312. Its totient is φ = 87709600.

The previous prime is 289441811. The next prime is 289441819. The reversal of 289441812 is 218144982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289441811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096239 + ... + 1096502.

It is an arithmetic number, because the mean of its divisors is an integer number (30698388).

Almost surely, 2^289441812 is an apocalyptic number.

289441812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

289441812 is an abundant number, since it is smaller than the sum of its proper divisors (447319500).

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

289441812 is a wasteful number, since it uses less digits than its factorization.

289441812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192759 (or 2192757 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 289441812 is about 17012.9895080200. The cubic root of 289441812 is about 661.4856432446.

The spelling of 289441812 in words is "two hundred eighty-nine million, four hundred forty-one thousand, eight hundred twelve".