2405542945 has 8 divisors (see below), whose sum is σ = 3108701736. Its totient is φ = 1776400896.

The previous prime is 2405542903. The next prime is 2405542963. The reversal of 2405542945 is 5492455042.

It can be written as a sum of positive squares in 4 ways, for example, as 16386304 + 2389156641 = 4048^2 + 48879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2405542945 - 2⁷ = 2405542817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2405542898 and 2405542907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18504112 + ... + 18504241.

It is an arithmetic number, because the mean of its divisors is an integer number (388587717).

Almost surely, 2^2405542945 is an apocalyptic number.

It is an amenable number.

2405542945 is a deficient number, since it is larger than the sum of its proper divisors (703158791).

2405542945 is a wasteful number, since it uses less digits than its factorization.

2405542945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37008371.

The product of its (nonzero) digits is 288000, while the sum is 40.

The square root of 2405542945 is about 49046.3346744688. The cubic root of 2405542945 is about 1339.8958382315.

Adding to 2405542945 its reverse (5492455042), we get a palindrome (7897997987).

The spelling of 2405542945 in words is "two billion, four hundred five million, five hundred forty-two thousand, nine hundred forty-five".