1308864 has 56 divisors (see below), whose sum is σ = 3675888. Its totient is φ = 409600.

The previous prime is 1308863. The next prime is 1308869. The reversal of 1308864 is 4688031.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1308863) 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, 3064 + ... + 3464.

2^1308864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1308864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1837944).

1308864 is an abundant number, since it is smaller than the sum of its proper divisors (2367024).

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

1308864 is a wasteful number, since it uses less digits than its factorization.

1308864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1308864 is about 1144.0559426881. The cubic root of 1308864 is about 109.3867806630.

The spelling of 1308864 in words is "one million, three hundred eight thousand, eight hundred sixty-four".