12701440 has 36 divisors (see below), whose sum is σ = 30426984. Its totient is φ = 5080064.

The previous prime is 12701387. The next prime is 12701441. The reversal of 12701440 is 4410721.

It is a super-2 number, since 2×12701440² = 322653156147200, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12701441) 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, 3682 + ... + 6241.

It is an arithmetic number, because the mean of its divisors is an integer number (845194).

Almost surely, 2^12701440 is an apocalyptic number.

12701440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12701440 is an abundant number, since it is smaller than the sum of its proper divisors (17725544).

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

12701440 is an frugal number, since it uses more digits than its factorization.

12701440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9944 (or 9930 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12701440 is about 3563.9079673864. The cubic root of 12701440 is about 233.3194730996.

The spelling of 12701440 in words is "twelve million, seven hundred one thousand, four hundred forty".