1212384 has 48 divisors (see below), whose sum is σ = 3244752. Its totient is φ = 396288.

The previous prime is 1212373. The next prime is 1212397. The reversal of 1212384 is 4832121.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1212384.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6922 + ... + 7094.

It is an arithmetic number, because the mean of its divisors is an integer number (67599).

2^1212384 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 1212384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622376).

1212384 is an abundant number, since it is smaller than the sum of its proper divisors (2032368).

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

1212384 is a wasteful number, since it uses less digits than its factorization.

1212384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 251 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1212384 is about 1101.0831031307. The cubic root of 1212384 is about 106.6301611189.

It can be divided in two parts, 1212 and 384, that added together give a triangular number (1596 = T₅₆).

The spelling of 1212384 in words is "one million, two hundred twelve thousand, three hundred eighty-four".