289240429 has 4 divisors (see below), whose sum is σ = 290450880. Its totient is φ = 288029980.

The previous prime is 289240423. The next prime is 289240453. The reversal of 289240429 is 924042982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289240429 - 2⁹ = 289239917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289240391 and 289240400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289240423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 604867 + ... + 605344.

It is an arithmetic number, because the mean of its divisors is an integer number (72612720).

Almost surely, 2^289240429 is an apocalyptic number.

It is an amenable number.

289240429 is a deficient number, since it is larger than the sum of its proper divisors (1210451).

289240429 is a wasteful number, since it uses less digits than its factorization.

289240429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210450.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 289240429 is about 17007.0699710444. The cubic root of 289240429 is about 661.3321951658.

The spelling of 289240429 in words is "two hundred eighty-nine million, two hundred forty thousand, four hundred twenty-nine".