289520372 has 6 divisors (see below), whose sum is σ = 506660658. Its totient is φ = 144760184.

The previous prime is 289520339. The next prime is 289520381. The reversal of 289520372 is 273025982.

289520372 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 268763236 + 20757136 = 16394^2 + 4556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36190043 + ... + 36190050.

It is an arithmetic number, because the mean of its divisors is an integer number (84443443).

Almost surely, 2^289520372 is an apocalyptic number.

It is an amenable number.

289520372 is a deficient number, since it is larger than the sum of its proper divisors (217140286).

289520372 is a wasteful number, since it uses less digits than its factorization.

289520372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72380097 (or 72380095 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 289520372 is about 17015.2981754655. The cubic root of 289520372 is about 661.5454844160.

The spelling of 289520372 in words is "two hundred eighty-nine million, five hundred twenty thousand, three hundred seventy-two".