2405218838 has 8 divisors (see below), whose sum is σ = 3935812680. Its totient is φ = 1093281280.

The previous prime is 2405218807. The next prime is 2405218847. The reversal of 2405218838 is 8388125042.

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

It is a junction number, because it is equal to n+sod(n) for n = 2405218795 and 2405218804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54664043 + ... + 54664086.

It is an arithmetic number, because the mean of its divisors is an integer number (491976585).

Almost surely, 2^2405218838 is an apocalyptic number.

2405218838 is a deficient number, since it is larger than the sum of its proper divisors (1530593842).

2405218838 is a wasteful number, since it uses less digits than its factorization.

2405218838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109328142.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 2405218838 is about 49043.0304732487. The cubic root of 2405218838 is about 1339.8356592843.

The spelling of 2405218838 in words is "two billion, four hundred five million, two hundred eighteen thousand, eight hundred thirty-eight".