12400270 has 8 divisors (see below), whose sum is σ = 22320504. Its totient is φ = 4960104.

The previous prime is 12400247. The next prime is 12400303. The reversal of 12400270 is 7200421.

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

It is a congruent number.

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, 620004 + ... + 620023.

It is an arithmetic number, because the mean of its divisors is an integer number (2790063).

Almost surely, 2^12400270 is an apocalyptic number.

12400270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12400270 is a deficient number, since it is larger than the sum of its proper divisors (9920234).

12400270 is a wasteful number, since it uses less digits than its factorization.

12400270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240034.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 12400270 is about 3521.4017095469. The cubic root of 12400270 is about 231.4605853841.

Adding to 12400270 its reverse (7200421), we get a palindrome (19600691).

The spelling of 12400270 in words is "twelve million, four hundred thousand, two hundred seventy".