1212264 has 48 divisors (see below), whose sum is σ = 3334500. Its totient is φ = 397824.

The previous prime is 1212259. The next prime is 1212283. The reversal of 1212264 is 4622121.

It can be written as a sum of positive squares in 2 ways, for example, as 887364 + 324900 = 942^2 + 570^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8062 + ... + 8210.

2^1212264 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 1212264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667250).

1212264 is an abundant number, since it is smaller than the sum of its proper divisors (2122236).

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

1212264 is a wasteful number, since it uses less digits than its factorization.

1212264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 267 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1212264 is about 1101.0286099825. The cubic root of 1212264 is about 106.6266429702.

Adding to 1212264 its reverse (4622121), we get a palindrome (5834385).

The spelling of 1212264 in words is "one million, two hundred twelve thousand, two hundred sixty-four".