1230864 has 20 divisors (see below), whose sum is σ = 3179856. Its totient is φ = 410272.

The previous prime is 1230863. The next prime is 1230869. The reversal of 1230864 is 4680321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1230863) 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, 12774 + ... + 12869.

2^1230864 is an apocalyptic number.

It is an amenable number.

1230864 is an abundant number, since it is smaller than the sum of its proper divisors (1948992).

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

1230864 is a wasteful number, since it uses less digits than its factorization.

1230864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25654 (or 25648 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1230864 is about 1109.4431035434. The cubic root of 1230864 is about 107.1692085026.

It can be divided in two parts, 12 and 30864, that added together give a triangular number (30876 = T₂₄₈).

The spelling of 1230864 in words is "one million, two hundred thirty thousand, eight hundred sixty-four".