2423221515 has 112 divisors (see below), whose sum is σ = 5123109600. Its totient is φ = 1084285440.

The previous prime is 2423221481. The next prime is 2423221543. The reversal of 2423221515 is 5151223242.

2423221515 is a `hidden beast` number, since 2 + 423 + 221 + 5 + 15 = 666.

2423221515 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2423221515 - 2⁷ = 2423221387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 518911 + ... + 523559.

It is an arithmetic number, because the mean of its divisors is an integer number (45742050).

Almost surely, 2^2423221515 is an apocalyptic number.

2423221515 is an abundant number, since it is smaller than the sum of its proper divisors (2699888085).

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

2423221515 is a wasteful number, since it uses less digits than its factorization.

2423221515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696 (or 4681 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2423221515 is about 49226.2279176457. The cubic root of 2423221515 is about 1343.1701719350.

Adding to 2423221515 its reverse (5151223242), we get a palindrome (7574444757).

The spelling of 2423221515 in words is "two billion, four hundred twenty-three million, two hundred twenty-one thousand, five hundred fifteen".