289407742 has 16 divisors (see below), whose sum is σ = 469454832. Its totient is φ = 133015680.

The previous prime is 289407739. The next prime is 289407757. The reversal of 289407742 is 247704982.

289407742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×289407742² = 167513682259077128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16828 + ... + 29359.

It is an arithmetic number, because the mean of its divisors is an integer number (29340927).

Almost surely, 2^289407742 is an apocalyptic number.

289407742 is a deficient number, since it is larger than the sum of its proper divisors (180047090).

289407742 is a wasteful number, since it uses less digits than its factorization.

289407742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46443.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 289407742 is about 17011.9881848066. The cubic root of 289407742 is about 661.4596878835.

The spelling of 289407742 in words is "two hundred eighty-nine million, four hundred seven thousand, seven hundred forty-two".