13840450 has 48 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 5037120.

The previous prime is 13840447. The next prime is 13840451. The reversal of 13840450 is 5404831.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (13840451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69451 + ... + 69649.

It is an arithmetic number, because the mean of its divisors is an integer number (585900).

Almost surely, 2^13840450 is an apocalyptic number.

13840450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13840450 is an abundant number, since it is smaller than the sum of its proper divisors (14282750).

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

13840450 is a wasteful number, since it uses less digits than its factorization.

13840450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 326 counting only the distinct ones).

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

The square root of 13840450 is about 3720.2755274307. The cubic root of 13840450 is about 240.0951590241.

The spelling of 13840450 in words is "thirteen million, eight hundred forty thousand, four hundred fifty".