13400745 has 8 divisors (see below), whose sum is σ = 21441216. Its totient is φ = 7147056.

The previous prime is 13400741. The next prime is 13400767. The reversal of 13400745 is 54700431.

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

It is not a de Polignac number, because 13400745 - 2² = 13400741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13400741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446677 + ... + 446706.

It is an arithmetic number, because the mean of its divisors is an integer number (2680152).

Almost surely, 2^13400745 is an apocalyptic number.

13400745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13400745 is a deficient number, since it is larger than the sum of its proper divisors (8040471).

13400745 is an equidigital number, since it uses as much as digits as its factorization.

13400745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893391.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 13400745 is about 3660.7028013757. The cubic root of 13400745 is about 237.5251755399.

The spelling of 13400745 in words is "thirteen million, four hundred thousand, seven hundred forty-five".