289220452 has 48 divisors (see below), whose sum is σ = 537062400. Its totient is φ = 136097280.

The previous prime is 289220447. The next prime is 289220471. The reversal of 289220452 is 254022982.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805449 + ... + 805807.

It is an arithmetic number, because the mean of its divisors is an integer number (11188800).

Almost surely, 2^289220452 is an apocalyptic number.

It is an amenable number.

289220452 is a deficient number, since it is larger than the sum of its proper divisors (247841948).

289220452 is a wasteful number, since it uses less digits than its factorization.

289220452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 289220452 is about 17006.4826463323. The cubic root of 289220452 is about 661.3169693812.

The spelling of 289220452 in words is "two hundred eighty-nine million, two hundred twenty thousand, four hundred fifty-two".