12964440 has 32 divisors (see below), whose sum is σ = 38893680. Its totient is φ = 3457152.

The previous prime is 12964423. The next prime is 12964459. The reversal of 12964440 is 4446921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12964398 and 12964407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53899 + ... + 54138.

Almost surely, 2^12964440 is an apocalyptic number.

12964440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12964440 is an abundant number, since it is smaller than the sum of its proper divisors (25929240).

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

12964440 is a wasteful number, since it uses less digits than its factorization.

12964440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108051 (or 108047 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 12964440 is about 3600.6166138594. The cubic root of 12964440 is about 234.9188795006.

The spelling of 12964440 in words is "twelve million, nine hundred sixty-four thousand, four hundred forty".