12977340 has 24 divisors (see below), whose sum is σ = 36336720. Its totient is φ = 3460608.

The previous prime is 12977329. The next prime is 12977347. The reversal of 12977340 is 4377921.

It is a super-2 number, since 2×12977340² = 336822706951200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12977347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108085 + ... + 108204.

It is an arithmetic number, because the mean of its divisors is an integer number (1514030).

Almost surely, 2^12977340 is an apocalyptic number.

12977340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12977340 is an abundant number, since it is smaller than the sum of its proper divisors (23359380).

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

12977340 is a wasteful number, since it uses less digits than its factorization.

12977340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216301 (or 216299 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 12977340 is about 3602.4075283066. The cubic root of 12977340 is about 234.9967707418.

The spelling of 12977340 in words is "twelve million, nine hundred seventy-seven thousand, three hundred forty".