2405945838 has 16 divisors (see below), whose sum is σ = 4816562256. Its totient is φ = 801203520.

The previous prime is 2405945833. The next prime is 2405945891. The reversal of 2405945838 is 8385495042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405945833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187893 + ... + 200288.

It is an arithmetic number, because the mean of its divisors is an integer number (301035141).

Almost surely, 2^2405945838 is an apocalyptic number.

2405945838 is an abundant number, since it is smaller than the sum of its proper divisors (2410616418).

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

2405945838 is a wasteful number, since it uses less digits than its factorization.

2405945838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389219.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The square root of 2405945838 is about 49050.4417717109. The cubic root of 2405945838 is about 1339.9706383260.

The spelling of 2405945838 in words is "two billion, four hundred five million, nine hundred forty-five thousand, eight hundred thirty-eight".