2421205104 has 20 divisors (see below), whose sum is σ = 6254779976. Its totient is φ = 807068352.

The previous prime is 2421205091. The next prime is 2421205109. The reversal of 2421205104 is 4015021242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421205109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25220839 + ... + 25220934.

Almost surely, 2^2421205104 is an apocalyptic number.

2421205104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2421205104 is an abundant number, since it is smaller than the sum of its proper divisors (3833574872).

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

2421205104 is a wasteful number, since it uses less digits than its factorization.

2421205104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50441784 (or 50441778 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2421205104 is about 49205.7425916935. The cubic root of 2421205104 is about 1342.7975089774.

Adding to 2421205104 its reverse (4015021242), we get a palindrome (6436226346).

The spelling of 2421205104 in words is "two billion, four hundred twenty-one million, two hundred five thousand, one hundred four".