13952440 has 16 divisors (see below), whose sum is σ = 31393080. Its totient is φ = 5580960.

The previous prime is 13952429. The next prime is 13952459. The reversal of 13952440 is 4425931.

It is a junction number, because it is equal to n+sod(n) for n = 13952399 and 13952408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174366 + ... + 174445.

Almost surely, 2^13952440 is an apocalyptic number.

13952440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13952440 is an abundant number, since it is smaller than the sum of its proper divisors (17440640).

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

13952440 is a wasteful number, since it uses less digits than its factorization.

13952440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348822 (or 348818 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13952440 is about 3735.2965076417. The cubic root of 13952440 is about 240.7409968644.

The spelling of 13952440 in words is "thirteen million, nine hundred fifty-two thousand, four hundred forty".