12902040 has 48 divisors (see below), whose sum is σ = 41932800. Its totient is φ = 3440448.

The previous prime is 12902033. The next prime is 12902041. The reversal of 12902040 is 4020921.

12902040 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12902041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17560 + ... + 18279.

It is an arithmetic number, because the mean of its divisors is an integer number (873600).

Almost surely, 2^12902040 is an apocalyptic number.

12902040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12902040 is an abundant number, since it is smaller than the sum of its proper divisors (29030760).

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

12902040 is a wasteful number, since it uses less digits than its factorization.

12902040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35856 (or 35849 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12902040 is about 3591.9409794706. The cubic root of 12902040 is about 234.5413720056.

Adding to 12902040 its reverse (4020921), we get a palindrome (16922961).

The spelling of 12902040 in words is "twelve million, nine hundred two thousand, forty".