13730340 has 96 divisors (see below), whose sum is σ = 42900480. Its totient is φ = 3257856.

The previous prime is 13730329. The next prime is 13730341. The reversal of 13730340 is 4303731.

It is not an unprimeable number, because it can be changed into a prime (13730341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22317 + ... + 22923.

It is an arithmetic number, because the mean of its divisors is an integer number (446880).

Almost surely, 2^13730340 is an apocalyptic number.

13730340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13730340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21450240).

13730340 is an abundant number, since it is smaller than the sum of its proper divisors (29170140).

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

13730340 is a wasteful number, since it uses less digits than its factorization.

13730340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 13730340 is about 3705.4473414151. The cubic root of 13730340 is about 239.4567574034.

The spelling of 13730340 in words is "thirteen million, seven hundred thirty thousand, three hundred forty".