289219012 has 12 divisors (see below), whose sum is σ = 516902400. Its totient is φ = 141532616.

The previous prime is 289218971. The next prime is 289219013. The reversal of 289219012 is 210912982.

It is a super-2 number, since 2×289219012² = 167295273804512288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289219013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769012 + ... + 769387.

It is an arithmetic number, because the mean of its divisors is an integer number (43075200).

Almost surely, 2^289219012 is an apocalyptic number.

It is an amenable number.

289219012 is a deficient number, since it is larger than the sum of its proper divisors (227683388).

289219012 is a wasteful number, since it uses less digits than its factorization.

289219012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538450 (or 1538448 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 289219012 is about 17006.4403094828. The cubic root of 289219012 is about 661.3158718354.

It can be divided in two parts, 2892 and 19012, that added together give a square (21904 = 148²).

The spelling of 289219012 in words is "two hundred eighty-nine million, two hundred nineteen thousand, twelve".