2415242421 has 8 divisors (see below), whose sum is σ = 3578136960. Its totient is φ = 1610161596.

The previous prime is 2415242419. The next prime is 2415242441. The reversal of 2415242421 is 1242425142.

It is a happy number.

2415242421 is a `hidden beast` number, since 2 + 415 + 2 + 4 + 242 + 1 = 666.

It is not a de Polignac number, because 2415242421 - 2¹ = 2415242419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 89453423 = 2415242421 / (2 + 4 + 1 + 5 + 2 + 4 + 2 + 4 + 2 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2415242441) 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, 44726685 + ... + 44726738.

It is an arithmetic number, because the mean of its divisors is an integer number (447267120).

Almost surely, 2^2415242421 is an apocalyptic number.

It is an amenable number.

2415242421 is a deficient number, since it is larger than the sum of its proper divisors (1162894539).

2415242421 is an equidigital number, since it uses as much as digits as its factorization.

2415242421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89453432 (or 89453426 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 2415242421 is about 49145.1159424820. The cubic root of 2415242421 is about 1341.6943038651.

Adding to 2415242421 its reverse (1242425142), we get a palindrome (3657667563).

The spelling of 2415242421 in words is "two billion, four hundred fifteen million, two hundred forty-two thousand, four hundred twenty-one".