13429720 has 16 divisors (see below), whose sum is σ = 30216960. Its totient is φ = 5371872.

The previous prime is 13429709. The next prime is 13429739. The reversal of 13429720 is 2792431.

It is a congruent number.

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, 167832 + ... + 167911.

It is an arithmetic number, because the mean of its divisors is an integer number (1888560).

Almost surely, 2^13429720 is an apocalyptic number.

13429720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13429720 is an abundant number, since it is smaller than the sum of its proper divisors (16787240).

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

13429720 is a wasteful number, since it uses less digits than its factorization.

13429720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335754 (or 335750 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13429720 is about 3664.6582378170. The cubic root of 13429720 is about 237.6962440795.

The spelling of 13429720 in words is "thirteen million, four hundred twenty-nine thousand, seven hundred twenty".