13443630 has 16 divisors (see below), whose sum is σ = 32264784. Its totient is φ = 3584960.

The previous prime is 13443629. The next prime is 13443631. The reversal of 13443630 is 3634431.

It is an interprime number because it is at equal distance from previous prime (13443629) and next prime (13443631).

It is a super-3 number, since 3×13443630³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13443630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443631) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 224031 + ... + 224090.

It is an arithmetic number, because the mean of its divisors is an integer number (2016549).

Almost surely, 2^13443630 is an apocalyptic number.

13443630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13443630 is an abundant number, since it is smaller than the sum of its proper divisors (18821154).

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

13443630 is a wasteful number, since it uses less digits than its factorization.

13443630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448131.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 13443630 is about 3666.5556043786. Note that the first 3 decimals coincide. The cubic root of 13443630 is about 237.7782813788.

The spelling of 13443630 in words is "thirteen million, four hundred forty-three thousand, six hundred thirty".