12247378 has 48 divisors (see below), whose sum is σ = 23126040. Its totient is φ = 4815360.

The previous prime is 12247369. The next prime is 12247409. The reversal of 12247378 is 87374221.

12247378 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 4 ways, for example, as 11854249 + 393129 = 3443^2 + 627^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53368 + ... + 53596.

Almost surely, 2^12247378 is an apocalyptic number.

12247378 is a deficient number, since it is larger than the sum of its proper divisors (10878662).

12247378 is a wasteful number, since it uses less digits than its factorization.

12247378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 272 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 12247378 is about 3499.6254085259. The cubic root of 12247378 is about 230.5053664035.

The spelling of 12247378 in words is "twelve million, two hundred forty-seven thousand, three hundred seventy-eight".