13974408 has 144 divisors (see below), whose sum is σ = 46816380. Its totient is φ = 3741696.

The previous prime is 13974407. The next prime is 13974437. The reversal of 13974408 is 80447931.

It is a happy number.

13974408 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13972644 + 1764 = 3738^2 + 42^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13974403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59860 + ... + 60092.

Almost surely, 2^13974408 is an apocalyptic number.

13974408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13974408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23408190).

13974408 is an abundant number, since it is smaller than the sum of its proper divisors (32841972).

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

13974408 is a wasteful number, since it uses less digits than its factorization.

13974408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 13974408 is about 3738.2359476095. The cubic root of 13974408 is about 240.8672788391.

It can be divided in two parts, 139 and 74408, that added together give a palindrome (74547).

The spelling of 13974408 in words is "thirteen million, nine hundred seventy-four thousand, four hundred eight".