12069640 has 32 divisors (see below), whose sum is σ = 29626560. Its totient is φ = 4388800.

The previous prime is 12069619. The next prime is 12069653. The reversal of 12069640 is 4696021.

It is a junction number, because it is equal to n+sod(n) for n = 12069599 and 12069608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13276 + ... + 14155.

It is an arithmetic number, because the mean of its divisors is an integer number (925830).

Almost surely, 2^12069640 is an apocalyptic number.

12069640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12069640 is an abundant number, since it is smaller than the sum of its proper divisors (17556920).

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

12069640 is a wasteful number, since it uses less digits than its factorization.

12069640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27453 (or 27449 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 12069640 is about 3474.1387421921. The cubic root of 12069640 is about 229.3848717622.

The spelling of 12069640 in words is "twelve million, sixty-nine thousand, six hundred forty".