1304387489 has 8 divisors (see below), whose sum is σ = 1342924800. Its totient is φ = 1266170400.

The previous prime is 1304387467. The next prime is 1304387501. The reversal of 1304387489 is 9847834031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304387489 - 2²⁰ = 1303338913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304387429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71777 + ... + 88094.

It is an arithmetic number, because the mean of its divisors is an integer number (167865600).

Almost surely, 2^1304387489 is an apocalyptic number.

It is an amenable number.

1304387489 is a deficient number, since it is larger than the sum of its proper divisors (38537311).

1304387489 is a wasteful number, since it uses less digits than its factorization.

1304387489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160111.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 1304387489 is about 36116.3050297231. The cubic root of 1304387489 is about 1092.6193182732.

The spelling of 1304387489 in words is "one billion, three hundred four million, three hundred eighty-seven thousand, four hundred eighty-nine".