13463720 has 16 divisors (see below), whose sum is σ = 30293460. Its totient is φ = 5385472.

The previous prime is 13463701. The next prime is 13463729. The reversal of 13463720 is 2736431.

It can be written as a sum of positive squares in 2 ways, for example, as 13147876 + 315844 = 3626^2 + 562^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13463720.

It is not an unprimeable number, because it can be changed into a prime (13463729) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 168257 + ... + 168336.

Almost surely, 2^13463720 is an apocalyptic number.

13463720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13463720 is an abundant number, since it is smaller than the sum of its proper divisors (16829740).

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

13463720 is a wasteful number, since it uses less digits than its factorization.

13463720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336604 (or 336600 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 13463720 is about 3669.2942100627. The cubic root of 13463720 is about 237.8966667678.

The spelling of 13463720 in words is "thirteen million, four hundred sixty-three thousand, seven hundred twenty".