13630540 has 96 divisors (see below), whose sum is σ = 36578304. Its totient is φ = 4143360.

The previous prime is 13630469. The next prime is 13630553. The reversal of 13630540 is 4503631.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81537 + ... + 81703.

It is an arithmetic number, because the mean of its divisors is an integer number (381024).

Almost surely, 2^13630540 is an apocalyptic number.

13630540 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 13630540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18289152).

13630540 is an abundant number, since it is smaller than the sum of its proper divisors (22947764).

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

13630540 is a wasteful number, since it uses less digits than its factorization.

13630540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 13630540 is about 3691.9561210827. The cubic root of 13630540 is about 238.8751762655.

The spelling of 13630540 in words is "thirteen million, six hundred thirty thousand, five hundred forty".