12040245 has 80 divisors (see below), whose sum is σ = 25648128. Its totient is φ = 5287680.

The previous prime is 12040213. The next prime is 12040253. The reversal of 12040245 is 54204021.

It is not a de Polignac number, because 12040245 - 2⁵ = 12040213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 87817 + ... + 87953.

Almost surely, 2^12040245 is an apocalyptic number.

12040245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12040245 is an abundant number, since it is smaller than the sum of its proper divisors (13607883).

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

12040245 is a wasteful number, since it uses less digits than its factorization.

12040245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 183 counting only the distinct ones).

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

The square root of 12040245 is about 3469.9056183130. The cubic root of 12040245 is about 229.1985019501.

Adding to 12040245 its reverse (54204021), we get a palindrome (66244266).

The spelling of 12040245 in words is "twelve million, forty thousand, two hundred forty-five".