2119843438 has 16 divisors (see below), whose sum is σ = 3380623776. Its totient is φ = 994708000.

The previous prime is 2119843417. The next prime is 2119843469. The reversal of 2119843438 is 8343489112.

It is a junction number, because it is equal to n+sod(n) for n = 2119843394 and 2119843403.

It is a congruent number.

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, 432313 + ... + 437188.

It is an arithmetic number, because the mean of its divisors is an integer number (211288986).

Almost surely, 2^2119843438 is an apocalyptic number.

2119843438 is a deficient number, since it is larger than the sum of its proper divisors (1260780338).

2119843438 is a wasteful number, since it uses less digits than its factorization.

2119843438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869579.

The product of its digits is 165888, while the sum is 43.

The square root of 2119843438 is about 46041.7575468183. The cubic root of 2119843438 is about 1284.6000335847.

The spelling of 2119843438 in words is "two billion, one hundred nineteen million, eight hundred forty-three thousand, four hundred thirty-eight".