13402945 has 8 divisors (see below), whose sum is σ = 16210944. Its totient is φ = 10637424.

The previous prime is 13402937. The next prime is 13402957. The reversal of 13402945 is 54920431.

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

It is a cyclic number.

It is not a de Polignac number, because 13402945 - 2³ = 13402937 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, 9919 + ... + 11188.

It is an arithmetic number, because the mean of its divisors is an integer number (2026368).

Almost surely, 2^13402945 is an apocalyptic number.

It is an amenable number.

13402945 is a deficient number, since it is larger than the sum of its proper divisors (2807999).

13402945 is a wasteful number, since it uses less digits than its factorization.

13402945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21239.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13402945 is about 3661.0032777915. The cubic root of 13402945 is about 237.5381729962.

The spelling of 13402945 in words is "thirteen million, four hundred two thousand, nine hundred forty-five".