289730546 has 16 divisors (see below), whose sum is σ = 496958976. Its totient is φ = 124100736.

The previous prime is 289730537. The next prime is 289730549. The reversal of 289730546 is 645037982.

It is a junction number, because it is equal to n+sod(n) for n = 289730497 and 289730506.

It is not an unprimeable number, because it can be changed into a prime (289730549) 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, 26210 + ... + 35586.

It is an arithmetic number, because the mean of its divisors is an integer number (31059936).

Almost surely, 2^289730546 is an apocalyptic number.

289730546 is a deficient number, since it is larger than the sum of its proper divisors (207228430).

289730546 is a wasteful number, since it uses less digits than its factorization.

289730546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11593.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 289730546 is about 17021.4730854882. The cubic root of 289730546 is about 661.7055261527.

The spelling of 289730546 in words is "two hundred eighty-nine million, seven hundred thirty thousand, five hundred forty-six".