1298864 has 20 divisors (see below), whose sum is σ = 2876304. Its totient is φ = 556608.

The previous prime is 1298863. The next prime is 1298887. The reversal of 1298864 is 4688921.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1298863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5687 + ... + 5910.

2^1298864 is an apocalyptic number.

1298864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1298864 is an abundant number, since it is smaller than the sum of its proper divisors (1577440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1298864 is a wasteful number, since it uses less digits than its factorization.

1298864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11612 (or 11606 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 1298864 is about 1139.6771472658. The cubic root of 1298864 is about 109.1074887259.

The spelling of 1298864 in words is "one million, two hundred ninety-eight thousand, eight hundred sixty-four".