13445416 has 16 divisors (see below), whose sum is σ = 25249140. Its totient is φ = 6712320.

The previous prime is 13445389. The next prime is 13445429. The reversal of 13445416 is 61454431.

It can be written as a sum of positive squares in 2 ways, for example, as 13293316 + 152100 = 3646^2 + 390^2 .

It is a super-2 number, since 2×13445416² = 361558422826112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9046 + ... + 10426.

Almost surely, 2^13445416 is an apocalyptic number.

It is an amenable number.

13445416 is a deficient number, since it is larger than the sum of its proper divisors (11803724).

13445416 is a wasteful number, since it uses less digits than its factorization.

13445416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604 (or 2600 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 13445416 is about 3666.7991491218. The cubic root of 13445416 is about 237.7888106086.

Adding to 13445416 its reverse (61454431), we get a palindrome (74899847).

It can be divided in two parts, 13445 and 416, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 13445416 in words is "thirteen million, four hundred forty-five thousand, four hundred sixteen".