13906080 has 240 divisors, whose sum is σ = 52141320. Its totient is φ = 3483648.

The previous prime is 13906037. The next prime is 13906097. The reversal of 13906080 is 8060931.

It can be written as a sum of positive squares in 4 ways, for example, as 13220496 + 685584 = 3636^2 + 828^2 .

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 375822 + ... + 375858.

Almost surely, 2^13906080 is an apocalyptic number.

13906080 is a gapful number since it is divisible by the number (10) 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 13906080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26070660).

13906080 is an abundant number, since it is smaller than the sum of its proper divisors (38235240).

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

13906080 is a wasteful number, since it uses less digits than its factorization.

13906080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13906080 is about 3729.0856788226. The cubic root of 13906080 is about 240.4740629846.

The spelling of 13906080 in words is "thirteen million, nine hundred six thousand, eighty".