2405420404 has 6 divisors (see below), whose sum is σ = 4209485714. Its totient is φ = 1202710200.

The previous prime is 2405420401. The next prime is 2405420411. The reversal of 2405420404 is 4040245042.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1814930404 + 590490000 = 42602^2 + 24300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405420401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300677547 + ... + 300677554.

Almost surely, 2^2405420404 is an apocalyptic number.

It is an amenable number.

2405420404 is a deficient number, since it is larger than the sum of its proper divisors (1804065310).

2405420404 is a wasteful number, since it uses less digits than its factorization.

2405420404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601355105 (or 601355103 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 2405420404 is about 49045.0854214772. The cubic root of 2405420404 is about 1339.8730859232.

Adding to 2405420404 its reverse (4040245042), we get a palindrome (6445665446).

The spelling of 2405420404 in words is "two billion, four hundred five million, four hundred twenty thousand, four hundred four".