13240146 has 16 divisors (see below), whose sum is σ = 26521344. Its totient is φ = 4406544.

The previous prime is 13240141. The next prime is 13240159. The reversal of 13240146 is 64104231.

It is a super-2 number, since 2×13240146² = 350602932202632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13240141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3900 + ... + 6456.

It is an arithmetic number, because the mean of its divisors is an integer number (1657584).

Almost surely, 2^13240146 is an apocalyptic number.

13240146 is an abundant number, since it is smaller than the sum of its proper divisors (13281198).

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

13240146 is a wasteful number, since it uses less digits than its factorization.

13240146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13240146 is about 3638.7011418912. The cubic root of 13240146 is about 236.5724992909.

Adding to 13240146 its reverse (64104231), we get a palindrome (77344377).

The spelling of 13240146 in words is "thirteen million, two hundred forty thousand, one hundred forty-six".