15344013040 has 80 divisors (see below), whose sum is σ = 36891129888. Its totient is φ = 5931813888.

The previous prime is 15344013031. The next prime is 15344013133. The reversal of 15344013040 is 4031044351.

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

It is a junction number, because it is equal to n+sod(n) for n = 15344012996 and 15344013014.

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, 257074 + ... + 311086.

Almost surely, 2^15344013040 is an apocalyptic number.

15344013040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15344013040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18445564944).

15344013040 is an abundant number, since it is smaller than the sum of its proper divisors (21547116848).

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

15344013040 is a wasteful number, since it uses less digits than its factorization.

15344013040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54146 (or 54140 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 15344013040 its reverse (4031044351), we get a palindrome (19375057391).

The spelling of 15344013040 in words is "fifteen billion, three hundred forty-four million, thirteen thousand, forty".