13403433240 has 48 divisors (see below), whose sum is σ = 43561159200. Its totient is φ = 3574248768.

The previous prime is 13403433229. The next prime is 13403433259. The reversal of 13403433240 is 4233430431.

13403433240 is a `hidden beast` number, since 13 + 403 + 4 + 3 + 3 + 240 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18615520 + ... + 18616239.

It is an arithmetic number, because the mean of its divisors is an integer number (907524150).

Almost surely, 2^13403433240 is an apocalyptic number.

13403433240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13403433240 is an abundant number, since it is smaller than the sum of its proper divisors (30157725960).

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

13403433240 is a wasteful number, since it uses less digits than its factorization.

13403433240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37231776 (or 37231769 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 13403433240 its reverse (4233430431), we get a palindrome (17636863671).

The spelling of 13403433240 in words is "thirteen billion, four hundred three million, four hundred thirty-three thousand, two hundred forty".