1212864 has 28 divisors (see below), whose sum is σ = 3209544. Its totient is φ = 404224.

The previous prime is 1212857. The next prime is 1212877. The reversal of 1212864 is 4682121.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2967 + ... + 3350.

2^1212864 is an apocalyptic number.

It is an amenable number.

1212864 is an abundant number, since it is smaller than the sum of its proper divisors (1996680).

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

1212864 is an equidigital number, since it uses as much as digits as its factorization.

1212864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332 (or 6322 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 1212864 is about 1101.3010487601. The cubic root of 1212864 is about 106.6442313926.

Adding to 1212864 its reverse (4682121), we get a palindrome (5894985).

The spelling of 1212864 in words is "one million, two hundred twelve thousand, eight hundred sixty-four".