13400742 has 16 divisors (see below), whose sum is σ = 27666432. Its totient is φ = 4322760.

The previous prime is 13400741. The next prime is 13400767. The reversal of 13400742 is 24700431.

It is a congruent number.

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, 35838 + ... + 36209.

It is an arithmetic number, because the mean of its divisors is an integer number (1729152).

Almost surely, 2^13400742 is an apocalyptic number.

13400742 is an abundant number, since it is smaller than the sum of its proper divisors (14265690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13400742 is a wasteful number, since it uses less digits than its factorization.

13400742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72083.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 13400742 is about 3660.7023916183. The cubic root of 13400742 is about 237.5251578151.

The spelling of 13400742 in words is "thirteen million, four hundred thousand, seven hundred forty-two".