12510040 has 32 divisors (see below), whose sum is σ = 28350000. Its totient is φ = 4968064.

The previous prime is 12510023. The next prime is 12510059. The reversal of 12510040 is 4001521.

It is a super-2 number, since 2×12510040² = 313002201603200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12510040.

It is a congruent number.

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, 4911 + ... + 7009.

Almost surely, 2^12510040 is an apocalyptic number.

12510040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12510040 is an abundant number, since it is smaller than the sum of its proper divisors (15839960).

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

12510040 is a wasteful number, since it uses less digits than its factorization.

12510040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 12510040 is about 3536.9534913538. The cubic root of 12510040 is about 232.1415604549.

Adding to 12510040 its reverse (4001521), we get a palindrome (16511561).

The spelling of 12510040 in words is "twelve million, five hundred ten thousand, forty".