2405621204 has 48 divisors (see below), whose sum is σ = 5026430976. Its totient is φ = 985672800.

The previous prime is 2405621203. The next prime is 2405621209. The reversal of 2405621204 is 4021265042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405621203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55349 + ... + 88739.

It is an arithmetic number, because the mean of its divisors is an integer number (104717312).

Almost surely, 2^2405621204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2405621204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2513215488).

2405621204 is an abundant number, since it is smaller than the sum of its proper divisors (2620809772).

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

2405621204 is a wasteful number, since it uses less digits than its factorization.

2405621204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33516 (or 33514 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2405621204 is about 49047.1324747941. The cubic root of 2405621204 is about 1339.9103682529.

Adding to 2405621204 its reverse (4021265042), we get a palindrome (6426886246).

The spelling of 2405621204 in words is "two billion, four hundred five million, six hundred twenty-one thousand, two hundred four".