12478370 has 8 divisors (see below), whose sum is σ = 22461084. Its totient is φ = 4991344.

The previous prime is 12478363. The next prime is 12478387. The reversal of 12478370 is 7387421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11978521 + 499849 = 3461^2 + 707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 623909 + ... + 623928.

Almost surely, 2^12478370 is an apocalyptic number.

12478370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12478370 is a deficient number, since it is larger than the sum of its proper divisors (9982714).

12478370 is a wasteful number, since it uses less digits than its factorization.

12478370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247844.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 12478370 is about 3532.4736375520. The cubic root of 12478370 is about 231.9455009719.

The spelling of 12478370 in words is "twelve million, four hundred seventy-eight thousand, three hundred seventy".