13662416 has 10 divisors (see below), whose sum is σ = 26470962. Its totient is φ = 6831200.

The previous prime is 13662409. The next prime is 13662427. The reversal of 13662416 is 61426631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 2238016 = 3380^2 + 1496^2 .

It is a super-2 number, since 2×13662416² = 373323221914112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426935 + ... + 426966.

Almost surely, 2^13662416 is an apocalyptic number.

13662416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13662416 is a deficient number, since it is larger than the sum of its proper divisors (12808546).

13662416 is an equidigital number, since it uses as much as digits as its factorization.

13662416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853909 (or 853903 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 13662416 is about 3696.2705528681. The cubic root of 13662416 is about 239.0612402371.

The spelling of 13662416 in words is "thirteen million, six hundred sixty-two thousand, four hundred sixteen".