13450000 has 60 divisors (see below), whose sum is σ = 32693220. Its totient is φ = 5360000.

The previous prime is 13449979. The next prime is 13450039. The reversal of 13450000 is 5431.

It can be written as a sum of positive squares in 6 ways, for example, as 13075456 + 374544 = 3616^2 + 612^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49866 + ... + 50134.

It is an arithmetic number, because the mean of its divisors is an integer number (544887).

Almost surely, 2^13450000 is an apocalyptic number.

13450000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16346610).

13450000 is an abundant number, since it is smaller than the sum of its proper divisors (19243220).

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

13450000 is an frugal number, since it uses more digits than its factorization.

13450000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 13450000 is about 3667.4241641784. The cubic root of 13450000 is about 237.8158309714.

Adding to 13450000 its reverse (5431), we get a palindrome (13455431).

The spelling of 13450000 in words is "thirteen million, four hundred fifty thousand".