289041100 has 18 divisors (see below), whose sum is σ = 627219404. Its totient is φ = 115616400.

The previous prime is 289041097. The next prime is 289041101. The reversal of 289041100 is 1140982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (289041101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1445106 + ... + 1445305.

Almost surely, 2^289041100 is an apocalyptic number.

289041100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289041100 is an abundant number, since it is smaller than the sum of its proper divisors (338178304).

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

289041100 is a wasteful number, since it uses less digits than its factorization.

289041100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890425 (or 2890418 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 289041100 is about 17001.2087805544. The cubic root of 289041100 is about 661.1802420209.

The spelling of 289041100 in words is "two hundred eighty-nine million, forty-one thousand, one hundred".