1298489432 has 16 divisors (see below), whose sum is σ = 2474581200. Its totient is φ = 638601120.

The previous prime is 1298489429. The next prime is 1298489473. The reversal of 1298489432 is 2349848921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329932 + ... + 1330907.

It is an arithmetic number, because the mean of its divisors is an integer number (154661325).

Almost surely, 2^1298489432 is an apocalyptic number.

It is an amenable number.

1298489432 is a deficient number, since it is larger than the sum of its proper divisors (1176091768).

1298489432 is a wasteful number, since it uses less digits than its factorization.

1298489432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660906 (or 2660902 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 1298489432 is about 36034.5588567420. The cubic root of 1298489432 is about 1090.9699953354.

It can be divided in two parts, 1298489 and 432, that added together give a palindrome (1298921).

The spelling of 1298489432 in words is "one billion, two hundred ninety-eight million, four hundred eighty-nine thousand, four hundred thirty-two".