1520799648 has 48 divisors (see below), whose sum is σ = 4014200736. Its totient is φ = 504126720.

The previous prime is 1520799647. The next prime is 1520799673. The reversal of 1520799648 is 8469970251.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1520799648.

It is not an unprimeable number, because it can be changed into a prime (1520799647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26386 + ... + 61137.

It is an arithmetic number, because the mean of its divisors is an integer number (83629182).

Almost surely, 2^1520799648 is an apocalyptic number.

It is an amenable number.

1520799648 is an abundant number, since it is smaller than the sum of its proper divisors (2493401088).

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

1520799648 is a wasteful number, since it uses less digits than its factorization.

1520799648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87717 (or 87709 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 1520799648 is about 38997.4313000228. The cubic root of 1520799648 is about 1149.9810073738.

The spelling of 1520799648 in words is "one billion, five hundred twenty million, seven hundred ninety-nine thousand, six hundred forty-eight".