12640074 has 8 divisors (see below), whose sum is σ = 25280160. Its totient is φ = 4213356.

The previous prime is 12640037. The next prime is 12640091. The reversal of 12640074 is 47004621.

12640074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12640074 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053334 + ... + 1053345.

It is an arithmetic number, because the mean of its divisors is an integer number (3160020).

Almost surely, 2^12640074 is an apocalyptic number.

12640074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12640074 is a wasteful number, since it uses less digits than its factorization.

12640074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106684.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 12640074 is about 3555.2881739741. The cubic root of 12640074 is about 232.9431114837.

Adding to 12640074 its reverse (47004621), we get a palindrome (59644695).

The spelling of 12640074 in words is "twelve million, six hundred forty thousand, seventy-four".