289403542 has 16 divisors (see below), whose sum is σ = 439499520. Its totient is φ = 142912168.

The previous prime is 289403519. The next prime is 289403551. The reversal of 289403542 is 245304982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74943 + ... + 78709.

It is an arithmetic number, because the mean of its divisors is an integer number (27468720).

Almost surely, 2^289403542 is an apocalyptic number.

289403542 is a deficient number, since it is larger than the sum of its proper divisors (150095978).

289403542 is a wasteful number, since it uses less digits than its factorization.

289403542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 289403542 is about 17011.8647419970. The cubic root of 289403542 is about 661.4564880796.

The spelling of 289403542 in words is "two hundred eighty-nine million, four hundred three thousand, five hundred forty-two".