13420170 has 24 divisors (see below), whose sum is σ = 34892676. Its totient is φ = 3578688.

The previous prime is 13420153. The next prime is 13420177. The reversal of 13420170 is 7102431.

It can be written as a sum of positive squares in 2 ways, for example, as 13417569 + 2601 = 3663^2 + 51^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13420177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74467 + ... + 74646.

Almost surely, 2^13420170 is an apocalyptic number.

13420170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13420170 is an abundant number, since it is smaller than the sum of its proper divisors (21472506).

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

13420170 is a wasteful number, since it uses less digits than its factorization.

13420170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149126 (or 149123 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 13420170 is about 3663.3550196507. The cubic root of 13420170 is about 237.6398880419.

The spelling of 13420170 in words is "thirteen million, four hundred twenty thousand, one hundred seventy".