13790780 has 24 divisors (see below), whose sum is σ = 29066352. Its totient is φ = 5496192.

The previous prime is 13790779. The next prime is 13790797. The reversal of 13790780 is 8709731.

It is a super-2 number, since 2×13790780² = 380371226016800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13790780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5159 + ... + 7361.

It is an arithmetic number, because the mean of its divisors is an integer number (1211098).

Almost surely, 2^13790780 is an apocalyptic number.

13790780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13790780 is an abundant number, since it is smaller than the sum of its proper divisors (15275572).

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

13790780 is a wasteful number, since it uses less digits than its factorization.

13790780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525 (or 2523 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 13790780 is about 3713.5939465698. The cubic root of 13790780 is about 239.8076004309.

The spelling of 13790780 in words is "thirteen million, seven hundred ninety thousand, seven hundred eighty".