13455289940 has 24 divisors (see below), whose sum is σ = 28263846912. Its totient is φ = 5380642080.

The previous prime is 13455289921. The next prime is 13455289957. The reversal of 13455289940 is 4998255431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15716 + ... + 164795.

It is an arithmetic number, because the mean of its divisors is an integer number (1177660288).

Almost surely, 2^13455289940 is an apocalyptic number.

13455289940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13455289940 is an abundant number, since it is smaller than the sum of its proper divisors (14808556972).

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

13455289940 is a wasteful number, since it uses less digits than its factorization.

13455289940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184247 (or 184245 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 13455289940 in words is "thirteen billion, four hundred fifty-five million, two hundred eighty-nine thousand, nine hundred forty".