12942240 has 96 divisors (see below), whose sum is σ = 41549760. Its totient is φ = 3385344.

The previous prime is 12942233. The next prime is 12942301. The reversal of 12942240 is 4224921.

12942240 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a self number, because there is not a number n which added to its sum of digits gives 12942240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28092 + ... + 28548.

It is an arithmetic number, because the mean of its divisors is an integer number (432810).

Almost surely, 2^12942240 is an apocalyptic number.

12942240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12942240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20774880).

12942240 is an abundant number, since it is smaller than the sum of its proper divisors (28607520).

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

12942240 is a wasteful number, since it uses less digits than its factorization.

12942240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 12942240 is about 3597.5324876921. The cubic root of 12942240 is about 234.7847130485.

The spelling of 12942240 in words is "twelve million, nine hundred forty-two thousand, two hundred forty".