15048517240 has 128 divisors (see below), whose sum is σ = 35665920000. Its totient is φ = 5707353600.

The previous prime is 15048517217. The next prime is 15048517243. The reversal of 15048517240 is 4271584051.

It is a super-2 number, since 2×15048517240² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15048517240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15048517243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14595525 + ... + 14596555.

It is an arithmetic number, because the mean of its divisors is an integer number (278640000).

Almost surely, 2^15048517240 is an apocalyptic number.

15048517240 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 15048517240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17832960000).

15048517240 is an abundant number, since it is smaller than the sum of its proper divisors (20617402760).

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

15048517240 is a wasteful number, since it uses less digits than its factorization.

15048517240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 15048517240 in words is "fifteen billion, forty-eight million, five hundred seventeen thousand, two hundred forty".