12540264 has 32 divisors (see below), whose sum is σ = 34201440. Its totient is φ = 3800000.

The previous prime is 12540263. The next prime is 12540317. The reversal of 12540264 is 46204521.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12540263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23487 + ... + 24014.

It is an arithmetic number, because the mean of its divisors is an integer number (1068795).

Almost surely, 2^12540264 is an apocalyptic number.

It is an amenable number.

12540264 is an abundant number, since it is smaller than the sum of its proper divisors (21661176).

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

12540264 is a wasteful number, since it uses less digits than its factorization.

12540264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47521 (or 47517 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 12540264 is about 3541.2235173736. The cubic root of 12540264 is about 232.3283598503.

Adding to 12540264 its reverse (46204521), we get a palindrome (58744785).

The spelling of 12540264 in words is "twelve million, five hundred forty thousand, two hundred sixty-four".