289354540 has 12 divisors (see below), whose sum is σ = 607644576. Its totient is φ = 115741808.

The previous prime is 289354529. The next prime is 289354567. The reversal of 289354540 is 45453982.

It is a super-2 number, since 2×289354540² = 167452099637223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 289354493 and 289354502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7233844 + ... + 7233883.

It is an arithmetic number, because the mean of its divisors is an integer number (50637048).

Almost surely, 2^289354540 is an apocalyptic number.

289354540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289354540 is an abundant number, since it is smaller than the sum of its proper divisors (318290036).

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

289354540 is a wasteful number, since it uses less digits than its factorization.

289354540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14467736 (or 14467734 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 289354540 is about 17010.4244509066. The cubic root of 289354540 is about 661.4191532216.

The spelling of 289354540 in words is "two hundred eighty-nine million, three hundred fifty-four thousand, five hundred forty".