13640170 has 8 divisors (see below), whose sum is σ = 24552324. Its totient is φ = 5456064.

The previous prime is 13640153. The next prime is 13640177. The reversal of 13640170 is 7104631.

It can be written as a sum of positive squares in 2 ways, for example, as 13111641 + 528529 = 3621^2 + 727^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13640177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681999 + ... + 682018.

Almost surely, 2^13640170 is an apocalyptic number.

13640170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13640170 is a deficient number, since it is larger than the sum of its proper divisors (10912154).

13640170 is a wasteful number, since it uses less digits than its factorization.

13640170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364024.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 13640170 is about 3693.2600774925. The cubic root of 13640170 is about 238.9314182638.

The spelling of 13640170 in words is "thirteen million, six hundred forty thousand, one hundred seventy".