13440754 has 4 divisors (see below), whose sum is σ = 20161134. Its totient is φ = 6720376.

The previous prime is 13440751. The next prime is 13440781. The reversal of 13440754 is 45704431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 227529 = 3635^2 + 477^2 .

It is not an unprimeable number, because it can be changed into a prime (13440751) 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 as a sum of consecutive naturals, namely, 3360187 + ... + 3360190.

Almost surely, 2^13440754 is an apocalyptic number.

13440754 is a deficient number, since it is larger than the sum of its proper divisors (6720380).

13440754 is an equidigital number, since it uses as much as digits as its factorization.

13440754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720379.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 13440754 is about 3666.1633897032. The cubic root of 13440754 is about 237.7613241754.

The spelling of 13440754 in words is "thirteen million, four hundred forty thousand, seven hundred fifty-four".