12790140 has 48 divisors (see below), whose sum is σ = 39070080. Its totient is φ = 3100480.

The previous prime is 12790109. The next prime is 12790147. The reversal of 12790140 is 4109721.

12790140 = T₂₉ + T₃₀ + ... + T₄₂₄.

12790140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12790140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9030 + ... + 10349.

It is an arithmetic number, because the mean of its divisors is an integer number (813960).

Almost surely, 2^12790140 is an apocalyptic number.

12790140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12790140 is an abundant number, since it is smaller than the sum of its proper divisors (26279940).

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

12790140 is a wasteful number, since it uses less digits than its factorization.

12790140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19402 (or 19400 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12790140 is about 3576.3305216381. The cubic root of 12790140 is about 233.8613394300.

Adding to 12790140 its reverse (4109721), we get a palindrome (16899861).

The spelling of 12790140 in words is "twelve million, seven hundred ninety thousand, one hundred forty".