13503605240 has 64 divisors (see below), whose sum is σ = 33279724800. Its totient is φ = 4908402688.

The previous prime is 13503605207. The next prime is 13503605321. The reversal of 13503605240 is 4250630531.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322664 + ... + 362103.

It is an arithmetic number, because the mean of its divisors is an integer number (519995700).

Almost surely, 2^13503605240 is an apocalyptic number.

13503605240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13503605240 is an abundant number, since it is smaller than the sum of its proper divisors (19776119560).

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

13503605240 is a wasteful number, since it uses less digits than its factorization.

13503605240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684824 (or 684820 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 13503605240 in words is "thirteen billion, five hundred three million, six hundred five thousand, two hundred forty".