289868100 has 36 divisors (see below), whose sum is σ = 838685904. Its totient is φ = 77298080.

The previous prime is 289868093. The next prime is 289868113. The reversal of 289868100 is 1868982.

It is a super-2 number, since 2×289868100² = 168047030795220000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 482814 + ... + 483413.

Almost surely, 2^289868100 is an apocalyptic number.

289868100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289868100 is an abundant number, since it is smaller than the sum of its proper divisors (548817804).

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

289868100 is a wasteful number, since it uses less digits than its factorization.

289868100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966244 (or 966237 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 289868100 is about 17025.5132081239. The cubic root of 289868100 is about 661.8102278518.

The spelling of 289868100 in words is "two hundred eighty-nine million, eight hundred sixty-eight thousand, one hundred".