13416720 has 40 divisors (see below), whose sum is σ = 41592576. Its totient is φ = 3577728.

The previous prime is 13416719. The next prime is 13416727. The reversal of 13416720 is 2761431.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13416727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27712 + ... + 28191.

Almost surely, 2^13416720 is an apocalyptic number.

13416720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13416720 is an abundant number, since it is smaller than the sum of its proper divisors (28175856).

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

13416720 is a wasteful number, since it uses less digits than its factorization.

13416720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55919 (or 55913 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13416720 is about 3662.8841095508. The cubic root of 13416720 is about 237.6195224807.

The spelling of 13416720 in words is "thirteen million, four hundred sixteen thousand, seven hundred twenty".