15797760 has 240 divisors, whose sum is σ = 58777488. Its totient is φ = 3604480.

The previous prime is 15797737. The next prime is 15797773. The reversal of 15797760 is 6779751.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 929272 + ... + 929288.

Almost surely, 2^15797760 is an apocalyptic number.

15797760 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 15797760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29388744).

15797760 is an abundant number, since it is smaller than the sum of its proper divisors (42979728).

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

15797760 is a wasteful number, since it uses less digits than its factorization.

15797760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 92610, while the sum is 42.

The square root of 15797760 is about 3974.6396063039. The cubic root of 15797760 is about 250.9180115596.

Subtracting from 15797760 its reverse (6779751), we obtain a square (9018009 = 3003²).

It can be divided in two parts, 1579 and 7760, that added together give a palindrome (9339).

The spelling of 15797760 in words is "fifteen million, seven hundred ninety-seven thousand, seven hundred sixty".