13029720 has 64 divisors (see below), whose sum is σ = 42647040. Its totient is φ = 3158400.

The previous prime is 13029713. The next prime is 13029727. The reversal of 13029720 is 2792031.

It is an interprime number because it is at equal distance from previous prime (13029713) and next prime (13029727).

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

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13029727) 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 15 ways as a sum of consecutive naturals, for example, 3616 + ... + 6255.

It is an arithmetic number, because the mean of its divisors is an integer number (666360).

Almost surely, 2^13029720 is an apocalyptic number.

13029720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13029720 is an abundant number, since it is smaller than the sum of its proper divisors (29617320).

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

13029720 is a wasteful number, since it uses less digits than its factorization.

13029720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9896 (or 9892 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13029720 is about 3609.6703450592. The cubic root of 13029720 is about 235.3125161594.

The spelling of 13029720 in words is "thirteen million, twenty-nine thousand, seven hundred twenty".