13442814 has 128 divisors (see below), whose sum is σ = 38568960. Its totient is φ = 3369600.

The previous prime is 13442791. The next prime is 13442831. The reversal of 13442814 is 41824431.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 220344 + ... + 220404.

It is an arithmetic number, because the mean of its divisors is an integer number (301320).

Almost surely, 2^13442814 is an apocalyptic number.

13442814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13442814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19284480).

13442814 is an abundant number, since it is smaller than the sum of its proper divisors (25126146).

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

13442814 is a wasteful number, since it uses less digits than its factorization.

13442814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 137 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 13442814 is about 3666.4443265922. Note that the first 3 decimals coincide. The cubic root of 13442814 is about 237.7734704014.

The spelling of 13442814 in words is "thirteen million, four hundred forty-two thousand, eight hundred fourteen".