13850440 has 16 divisors (see below), whose sum is σ = 31163580. Its totient is φ = 5540160.

The previous prime is 13850423. The next prime is 13850443. The reversal of 13850440 is 4405831.

13850440 is digitally balanced in base 2, because in such base 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 13793796 + 56644 = 3714^2 + 238^2 .

It is not an unprimeable number, because it can be changed into a prime (13850443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173091 + ... + 173170.

Almost surely, 2^13850440 is an apocalyptic number.

13850440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13850440 is an abundant number, since it is smaller than the sum of its proper divisors (17313140).

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

13850440 is a wasteful number, since it uses less digits than its factorization.

13850440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346272 (or 346268 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13850440 is about 3721.6179277298. The cubic root of 13850440 is about 240.1529118135.

The spelling of 13850440 in words is "thirteen million, eight hundred fifty thousand, four hundred forty".