12469940 has 24 divisors (see below), whose sum is σ = 29928192. Its totient is φ = 4275360.

The previous prime is 12469939. The next prime is 12469949. The reversal of 12469940 is 4996421.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 12469940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12469949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44396 + ... + 44675.

It is an arithmetic number, because the mean of its divisors is an integer number (1247008).

Almost surely, 2^12469940 is an apocalyptic number.

12469940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12469940 is an abundant number, since it is smaller than the sum of its proper divisors (17458252).

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

12469940 is a wasteful number, since it uses less digits than its factorization.

12469940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89087 (or 89085 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 12469940 is about 3531.2802211096. The cubic root of 12469940 is about 231.8932574751.

The spelling of 12469940 in words is "twelve million, four hundred sixty-nine thousand, nine hundred forty".