289075381 has 8 divisors (see below), whose sum is σ = 332749760. Its totient is φ = 245995488.

The previous prime is 289075363. The next prime is 289075387. The reversal of 289075381 is 183570982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289075381 - 2⁵ = 289075349 is a prime.

It is a super-2 number, since 2×289075381² = 167129151800590322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289075387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147576 + ... + 149521.

It is an arithmetic number, because the mean of its divisors is an integer number (41593720).

Almost surely, 2^289075381 is an apocalyptic number.

It is an amenable number.

289075381 is a deficient number, since it is larger than the sum of its proper divisors (43674379).

289075381 is a wasteful number, since it uses less digits than its factorization.

289075381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297243.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 289075381 is about 17002.2169436812. The cubic root of 289075381 is about 661.2063801997.

The spelling of 289075381 in words is "two hundred eighty-nine million, seventy-five thousand, three hundred eighty-one".