289043004 has 12 divisors (see below), whose sum is σ = 674433704. Its totient is φ = 96347664.

The previous prime is 289042987. The next prime is 289043009. The reversal of 289043004 is 400340982.

It is a happy number.

289043004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×289043004² = 167091716322688032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289043009) 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, 12043447 + ... + 12043470.

Almost surely, 2^289043004 is an apocalyptic number.

It is an amenable number.

289043004 is an abundant number, since it is smaller than the sum of its proper divisors (385390700).

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

289043004 is a wasteful number, since it uses less digits than its factorization.

289043004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24086924 (or 24086922 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 289043004 is about 17001.2647764806. The cubic root of 289043004 is about 661.1816938149.

Adding to 289043004 its reverse (400340982), we get a palindrome (689383986).

The spelling of 289043004 in words is "two hundred eighty-nine million, forty-three thousand, four".