13428452240 has 80 divisors (see below), whose sum is σ = 35695893888. Its totient is φ = 4602160128.

The previous prime is 13428452231. The next prime is 13428452243. The reversal of 13428452240 is 4225482431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×13428452240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 13428452240.

It is not an unprimeable number, because it can be changed into a prime (13428452243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2681579 + ... + 2686581.

Almost surely, 2^13428452240 is an apocalyptic number.

13428452240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13428452240 is an abundant number, since it is smaller than the sum of its proper divisors (22267441648).

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

13428452240 is a wasteful number, since it uses less digits than its factorization.

13428452240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9816 (or 9810 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 13428452240 in words is "thirteen billion, four hundred twenty-eight million, four hundred fifty-two thousand, two hundred forty".