13765530 has 32 divisors (see below), whose sum is σ = 33306624. Its totient is φ = 3640896.

The previous prime is 13765511. The next prime is 13765553. The reversal of 13765530 is 3556731.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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, 2004 + ... + 5616.

It is an arithmetic number, because the mean of its divisors is an integer number (1040832).

Almost surely, 2^13765530 is an apocalyptic number.

13765530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13765530 is an abundant number, since it is smaller than the sum of its proper divisors (19541094).

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

13765530 is a wasteful number, since it uses less digits than its factorization.

13765530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 13765530 is about 3710.1927173666. The cubic root of 13765530 is about 239.6611537664.

The spelling of 13765530 in words is "thirteen million, seven hundred sixty-five thousand, five hundred thirty".