13442140 has 12 divisors (see below), whose sum is σ = 28228536. Its totient is φ = 5376848.

The previous prime is 13442131. The next prime is 13442153. The reversal of 13442140 is 4124431.

13442140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13442140² = 361382255559200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336034 + ... + 336073.

It is an arithmetic number, because the mean of its divisors is an integer number (2352378).

Almost surely, 2^13442140 is an apocalyptic number.

13442140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13442140 is an abundant number, since it is smaller than the sum of its proper divisors (14786396).

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

13442140 is a wasteful number, since it uses less digits than its factorization.

13442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672116 (or 672114 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 13442140 is about 3666.3524107756. The cubic root of 13442140 is about 237.7694964815.

Adding to 13442140 its reverse (4124431), we get a palindrome (17566571).

The spelling of 13442140 in words is "thirteen million, four hundred forty-two thousand, one hundred forty".