2445446405 has 4 divisors (see below), whose sum is σ = 2934535692. Its totient is φ = 1956357120.

The previous prime is 2445446401. The next prime is 2445446407. The reversal of 2445446405 is 5046445442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5046445442 = 2 ⋅2523222721.

It can be written as a sum of positive squares in 2 ways, for example, as 1551256996 + 894189409 = 39386^2 + 29903^2 .

It is not a de Polignac number, because 2445446405 - 2² = 2445446401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445446401) 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, 244544636 + ... + 244544645.

It is an arithmetic number, because the mean of its divisors is an integer number (733633923).

Almost surely, 2^2445446405 is an apocalyptic number.

It is an amenable number.

2445446405 is a deficient number, since it is larger than the sum of its proper divisors (489089287).

2445446405 is an equidigital number, since it uses as much as digits as its factorization.

2445446405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489089286.

The product of its (nonzero) digits is 307200, while the sum is 38.

The square root of 2445446405 is about 49451.4550342050. The cubic root of 2445446405 is about 1347.2640346005.

The spelling of 2445446405 in words is "two billion, four hundred forty-five million, four hundred forty-six thousand, four hundred five".