12457384 has 16 divisors (see below), whose sum is σ = 23495220. Its totient is φ = 6192000.

The previous prime is 12457373. The next prime is 12457391. The reversal of 12457384 is 48375421.

12457384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12404484 + 52900 = 3522^2 + 230^2 .

It is a super-2 number, since 2×12457384² = 310372832246912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3117 + ... + 5884.

Almost surely, 2^12457384 is an apocalyptic number.

It is an amenable number.

12457384 is a deficient number, since it is larger than the sum of its proper divisors (11037836).

12457384 is a wasteful number, since it uses less digits than its factorization.

12457384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9180 (or 9176 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 12457384 is about 3529.5019478674. The cubic root of 12457384 is about 231.8154001227.

The spelling of 12457384 in words is "twelve million, four hundred fifty-seven thousand, three hundred eighty-four".