13409450 has 12 divisors (see below), whose sum is σ = 24941670. Its totient is φ = 5363760.

The previous prime is 13409441. The next prime is 13409491. The reversal of 13409450 is 5490431.

13409450 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 3 ways, for example, as 12880921 + 528529 = 3589^2 + 727^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134045 + ... + 134144.

Almost surely, 2^13409450 is an apocalyptic number.

13409450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13409450 is a deficient number, since it is larger than the sum of its proper divisors (11532220).

13409450 is a wasteful number, since it uses less digits than its factorization.

13409450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268201 (or 268196 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13409450 is about 3661.8915876907. The cubic root of 13409450 is about 237.5765957932.

Adding to 13409450 its reverse (5490431), we get a palindrome (18899881).

The spelling of 13409450 in words is "thirteen million, four hundred nine thousand, four hundred fifty".