12955240 has 32 divisors (see below), whose sum is σ = 29342880. Its totient is φ = 5147712.

The previous prime is 12955231. The next prime is 12955247. The reversal of 12955240 is 4255921.

12955240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12955199 and 12955208.

It is not an unprimeable number, because it can be changed into a prime (12955247) 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, 5527 + ... + 7513.

It is an arithmetic number, because the mean of its divisors is an integer number (916965).

Almost surely, 2^12955240 is an apocalyptic number.

12955240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12955240 is an abundant number, since it is smaller than the sum of its proper divisors (16387640).

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

12955240 is a wasteful number, since it uses less digits than its factorization.

12955240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 12955240 is about 3599.3388281739. The cubic root of 12955240 is about 234.8632975876.

The spelling of 12955240 in words is "twelve million, nine hundred fifty-five thousand, two hundred forty".