13407745 has 8 divisors (see below), whose sum is σ = 17327016. Its totient is φ = 9901056.

The previous prime is 13407731. The next prime is 13407791. The reversal of 13407745 is 54770431.

It can be written as a sum of positive squares in 4 ways, for example, as 361201 + 13046544 = 601^2 + 3612^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13407745 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103072 + ... + 103201.

It is an arithmetic number, because the mean of its divisors is an integer number (2165877).

Almost surely, 2^13407745 is an apocalyptic number.

It is an amenable number.

13407745 is a deficient number, since it is larger than the sum of its proper divisors (3919271).

13407745 is a wasteful number, since it uses less digits than its factorization.

13407745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206291.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 13407745 is about 3661.6587771118. The cubic root of 13407745 is about 237.5665261466.

It can be divided in two parts, 13407 and 745, that multiplied together give a triangular number (9988215 = T₄₄₆₉).

The spelling of 13407745 in words is "thirteen million, four hundred seven thousand, seven hundred forty-five".