289742324 has 12 divisors (see below), whose sum is σ = 533736000. Its totient is φ = 137246328.

The previous prime is 289742311. The next prime is 289742347. The reversal of 289742324 is 423247982.

It is a super-2 number, since 2×289742324² = 167901228633841952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906124 + ... + 1906275.

It is an arithmetic number, because the mean of its divisors is an integer number (44478000).

Almost surely, 2^289742324 is an apocalyptic number.

It is an amenable number.

289742324 is a deficient number, since it is larger than the sum of its proper divisors (243993676).

289742324 is a wasteful number, since it uses less digits than its factorization.

289742324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812422 (or 3812420 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 289742324 is about 17021.8190567283. The cubic root of 289742324 is about 661.7144924862.

The spelling of 289742324 in words is "two hundred eighty-nine million, seven hundred forty-two thousand, three hundred twenty-four".