13007730 has 32 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 3409472.

The previous prime is 13007711. The next prime is 13007741. The reversal of 13007730 is 3770031.

It is a junction number, because it is equal to n+sod(n) for n = 13007697 and 13007706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905 + ... + 5444.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^13007730 is an apocalyptic number.

13007730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13007730 is an abundant number, since it is smaller than the sum of its proper divisors (18744270).

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

13007730 is a wasteful number, since it uses less digits than its factorization.

13007730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7418.

The product of its (nonzero) digits is 441, while the sum is 21.

The square root of 13007730 is about 3606.6230742899. The cubic root of 13007730 is about 235.1800641972.

Adding to 13007730 its reverse (3770031), we get a palindrome (16777761).

The spelling of 13007730 in words is "thirteen million, seven thousand, seven hundred thirty".