13400146 has 16 divisors (see below), whose sum is σ = 20880000. Its totient is φ = 6442128.

The previous prime is 13400143. The next prime is 13400147. The reversal of 13400146 is 64100431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13400141) 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 7 ways as a sum of consecutive naturals, for example, 26605 + ... + 27103.

It is an arithmetic number, because the mean of its divisors is an integer number (1305000).

Almost surely, 2^13400146 is an apocalyptic number.

13400146 is a deficient number, since it is larger than the sum of its proper divisors (7479854).

13400146 is a wasteful number, since it uses less digits than its factorization.

13400146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13400146 is about 3660.6209855706. The cubic root of 13400146 is about 237.5216364407.

Adding to 13400146 its reverse (64100431), we get a palindrome (77500577).

The spelling of 13400146 in words is "thirteen million, four hundred thousand, one hundred forty-six".