2421515280 has 80 divisors (see below), whose sum is σ = 7511483520. Its totient is φ = 645325824.

The previous prime is 2421515269. The next prime is 2421515297. The reversal of 2421515280 is 825151242.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 649261 + ... + 652979.

It is an arithmetic number, because the mean of its divisors is an integer number (93893544).

Almost surely, 2^2421515280 is an apocalyptic number.

2421515280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421515280 is an abundant number, since it is smaller than the sum of its proper divisors (5089968240).

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

2421515280 is a wasteful number, since it uses less digits than its factorization.

2421515280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448 (or 6442 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 2421515280 is about 49208.8943179991. The cubic root of 2421515280 is about 1342.8548476108.

The spelling of 2421515280 in words is "two billion, four hundred twenty-one million, five hundred fifteen thousand, two hundred eighty".