13951040 has 28 divisors (see below), whose sum is σ = 33221676. Its totient is φ = 5580288.

The previous prime is 13951027. The next prime is 13951061. The reversal of 13951040 is 4015931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 12166144 = 1336^2 + 3488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13950997 and 13951015.

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, 21479 + ... + 22118.

Almost surely, 2^13951040 is an apocalyptic number.

13951040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13951040 is an abundant number, since it is smaller than the sum of its proper divisors (19270636).

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

13951040 is an equidigital number, since it uses as much as digits as its factorization.

13951040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43614 (or 43604 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 13951040 is about 3735.1091014855. The cubic root of 13951040 is about 240.7329445412.

Adding to 13951040 its reverse (4015931), we get a palindrome (17966971).

The spelling of 13951040 in words is "thirteen million, nine hundred fifty-one thousand, forty".