12052440 has 48 divisors (see below), whose sum is σ = 39171600. Its totient is φ = 3213888.

The previous prime is 12052433. The next prime is 12052471. The reversal of 12052440 is 4425021.

It is a super-2 number, since 2×12052440² = 290522619907200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16380 + ... + 17099.

It is an arithmetic number, because the mean of its divisors is an integer number (816075).

Almost surely, 2^12052440 is an apocalyptic number.

12052440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12052440 is an abundant number, since it is smaller than the sum of its proper divisors (27119160).

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

12052440 is a wasteful number, since it uses less digits than its factorization.

12052440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33496 (or 33489 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 12052440 is about 3471.6624259856. The cubic root of 12052440 is about 229.2758573139.

Adding to 12052440 its reverse (4425021), we get a palindrome (16477461).

The spelling of 12052440 in words is "twelve million, fifty-two thousand, four hundred forty".