289860348 has 12 divisors (see below), whose sum is σ = 676340840. Its totient is φ = 96620112.

The previous prime is 289860343. The next prime is 289860359. The reversal of 289860348 is 843068982.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×289860348² = 168038042685362208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 289860297 and 289860306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289860343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12077503 + ... + 12077526.

Almost surely, 2^289860348 is an apocalyptic number.

It is an amenable number.

289860348 is an abundant number, since it is smaller than the sum of its proper divisors (386480492).

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

289860348 is a wasteful number, since it uses less digits than its factorization.

289860348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24155036 (or 24155034 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 289860348 is about 17025.2855482661. The cubic root of 289860348 is about 661.8043281586.

The spelling of 289860348 in words is "two hundred eighty-nine million, eight hundred sixty thousand, three hundred forty-eight".