13449613590 has 288 divisors, whose sum is σ = 42149147040. Its totient is φ = 2964584448.

The previous prime is 13449613589. The next prime is 13449613633. The reversal of 13449613590 is 9531694431.

13449613590 is a `hidden beast` number, since 1 + 3 + 4 + 49 + 6 + 13 + 590 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22680334 + ... + 22680926.

It is an arithmetic number, because the mean of its divisors is an integer number (146351205).

Almost surely, 2^13449613590 is an apocalyptic number.

13449613590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13449613590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21074573520).

13449613590 is an abundant number, since it is smaller than the sum of its proper divisors (28699533450).

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

13449613590 is a wasteful number, since it uses less digits than its factorization.

13449613590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 13449613590 in words is "thirteen billion, four hundred forty-nine million, six hundred thirteen thousand, five hundred ninety".