289929044 has 6 divisors (see below), whose sum is σ = 507375834. Its totient is φ = 144964520.

The previous prime is 289929001. The next prime is 289929047. The reversal of 289929044 is 440929982.

It can be written as a sum of positive squares in only one way, i.e., 262764100 + 27164944 = 16210^2 + 5212^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 289929044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289929047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36241127 + ... + 36241134.

It is an arithmetic number, because the mean of its divisors is an integer number (84562639).

Almost surely, 2^289929044 is an apocalyptic number.

It is an amenable number.

289929044 is a deficient number, since it is larger than the sum of its proper divisors (217446790).

289929044 is a wasteful number, since it uses less digits than its factorization.

289929044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72482265 (or 72482263 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 289929044 is about 17027.3028985803. The cubic root of 289929044 is about 661.8566058840.

The spelling of 289929044 in words is "two hundred eighty-nine million, nine hundred twenty-nine thousand, forty-four".