12400898 has 8 divisors (see below), whose sum is σ = 18632208. Its totient is φ = 6190164.

The previous prime is 12400897. The next prime is 12400907. The reversal of 12400898 is 89800421.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (12400897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3536 + ... + 6107.

It is an arithmetic number, because the mean of its divisors is an integer number (2329026).

Almost surely, 2^12400898 is an apocalyptic number.

12400898 is a deficient number, since it is larger than the sum of its proper divisors (6231310).

12400898 is an equidigital number, since it uses as much as digits as its factorization.

12400898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10288.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12400898 is about 3521.4908774552. The cubic root of 12400898 is about 231.4644926859.

The spelling of 12400898 in words is "twelve million, four hundred thousand, eight hundred ninety-eight".