13431450 has 48 divisors (see below), whose sum is σ = 33587136. Its totient is φ = 3552000.

The previous prime is 13431433. The next prime is 13431497. The reversal of 13431450 is 5413431.

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 23 ways as a sum of consecutive naturals, for example, 22354 + ... + 22946.

It is an arithmetic number, because the mean of its divisors is an integer number (699732).

Almost surely, 2^13431450 is an apocalyptic number.

13431450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13431450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16793568).

13431450 is an abundant number, since it is smaller than the sum of its proper divisors (20155686).

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

13431450 is a wasteful number, since it uses less digits than its factorization.

13431450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13431450 is about 3664.8942685977. The cubic root of 13431450 is about 237.7064502205.

Adding to 13431450 its reverse (5413431), we get a palindrome (18844881).

The spelling of 13431450 in words is "thirteen million, four hundred thirty-one thousand, four hundred fifty".