289123002 has 24 divisors (see below), whose sum is σ = 715923936. Its totient is φ = 82606536.

The previous prime is 289122979. The next prime is 289123033. The reversal of 289123002 is 200321982.

It is a happy number.

It is a super-2 number, since 2×289123002² = 167184220570984008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1147188 + ... + 1147439.

It is an arithmetic number, because the mean of its divisors is an integer number (29830164).

Almost surely, 2^289123002 is an apocalyptic number.

289123002 is an abundant number, since it is smaller than the sum of its proper divisors (426800934).

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

289123002 is a wasteful number, since it uses less digits than its factorization.

289123002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294642 (or 2294639 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 289123002 is about 17003.6173210291. The cubic root of 289123002 is about 661.2426862779.

Adding to 289123002 its reverse (200321982), we get a palindrome (489444984).

The spelling of 289123002 in words is "two hundred eighty-nine million, one hundred twenty-three thousand, two".