1264216 has 16 divisors (see below), whose sum is σ = 2435040. Its totient is φ = 614880.

The previous prime is 1264213. The next prime is 1264231. The reversal of 1264216 is 6124621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264213) 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, 1840 + ... + 2431.

It is an arithmetic number, because the mean of its divisors is an integer number (152190).

2^1264216 is an apocalyptic number.

It is an amenable number.

1264216 is a deficient number, since it is larger than the sum of its proper divisors (1170824).

1264216 is a wasteful number, since it uses less digits than its factorization.

1264216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4310 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1264216 is about 1124.3736033899. The cubic root of 1264216 is about 108.1285620353.

Adding to 1264216 its reverse (6124621), we get a palindrome (7388837).

The spelling of 1264216 in words is "one million, two hundred sixty-four thousand, two hundred sixteen".