2043490638 has 16 divisors (see below), whose sum is σ = 4670835840. Its totient is φ = 583854456.

The previous prime is 2043490621. The next prime is 2043490663. The reversal of 2043490638 is 8360943402.

It is a junction number, because it is equal to n+sod(n) for n = 2043490596 and 2043490605.

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 7 ways as a sum of consecutive naturals, for example, 24327228 + ... + 24327311.

It is an arithmetic number, because the mean of its divisors is an integer number (291927240).

Almost surely, 2^2043490638 is an apocalyptic number.

2043490638 is an abundant number, since it is smaller than the sum of its proper divisors (2627345202).

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

2043490638 is a wasteful number, since it uses less digits than its factorization.

2043490638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48654551.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 2043490638 is about 45204.9846587741. The cubic root of 2043490638 is about 1268.9881037981.

The spelling of 2043490638 in words is "two billion, forty-three million, four hundred ninety thousand, six hundred thirty-eight".