12776452 has 48 divisors (see below), whose sum is σ = 25930800. Its totient is φ = 5455872.

The previous prime is 12776441. The next prime is 12776453. The reversal of 12776452 is 25467721.

It can be written as a sum of positive squares in 8 ways, for example, as 1052676 + 11723776 = 1026^2 + 3424^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

Its product of digits (23520) is a multiple of the sum of its prime factors (280).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85674 + ... + 85822.

It is an arithmetic number, because the mean of its divisors is an integer number (540225).

Almost surely, 2^12776452 is an apocalyptic number.

It is an amenable number.

12776452 is an abundant number, since it is smaller than the sum of its proper divisors (13154348).

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

12776452 is a wasteful number, since it uses less digits than its factorization.

12776452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 278 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 12776452 is about 3574.4163159878. The cubic root of 12776452 is about 233.7778835640. Note that the first 3 decimals are identical.

The spelling of 12776452 in words is "twelve million, seven hundred seventy-six thousand, four hundred fifty-two".