12719380 has 12 divisors (see below), whose sum is σ = 26710740. Its totient is φ = 5087744.

The previous prime is 12719353. The next prime is 12719387. The reversal of 12719380 is 8391721.

It can be written as a sum of positive squares in 2 ways, for example, as 7420176 + 5299204 = 2724^2 + 2302^2 .

It is a super-3 number, since 3×12719380³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12719387) 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, 317965 + ... + 318004.

It is an arithmetic number, because the mean of its divisors is an integer number (2225895).

Almost surely, 2^12719380 is an apocalyptic number.

12719380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12719380 is an abundant number, since it is smaller than the sum of its proper divisors (13991360).

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

12719380 is a wasteful number, since it uses less digits than its factorization.

12719380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635978 (or 635976 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 12719380 is about 3566.4239792823. The cubic root of 12719380 is about 233.4292712062.

Subtracting from 12719380 its product of nonzero digits (3024), we obtain a square (12716356 = 3566²).

The spelling of 12719380 in words is "twelve million, seven hundred nineteen thousand, three hundred eighty".