289750542 has 16 divisors (see below), whose sum is σ = 599484240. Its totient is φ = 93252992.

The previous prime is 289750507. The next prime is 289750561. The reversal of 289750542 is 245057982.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 289750494 and 289750503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832443 + ... + 832790.

It is an arithmetic number, because the mean of its divisors is an integer number (37467765).

Almost surely, 2^289750542 is an apocalyptic number.

289750542 is an abundant number, since it is smaller than the sum of its proper divisors (309733698).

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

289750542 is a wasteful number, since it uses less digits than its factorization.

289750542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665267.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 289750542 is about 17022.0604510735. The cubic root of 289750542 is about 661.7207485257.

The spelling of 289750542 in words is "two hundred eighty-nine million, seven hundred fifty thousand, five hundred forty-two".