2801780938 has 32 divisors (see below), whose sum is σ = 4614704640. Its totient is φ = 1265243760.

The previous prime is 2801780887. The next prime is 2801780941. The reversal of 2801780938 is 8390871082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3853531 + ... + 3854257.

It is an arithmetic number, because the mean of its divisors is an integer number (144209520).

Almost surely, 2^2801780938 is an apocalyptic number.

2801780938 is a deficient number, since it is larger than the sum of its proper divisors (1812923702).

2801780938 is a wasteful number, since it uses less digits than its factorization.

2801780938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 2801780938 is about 52931.8518285540. The cubic root of 2801780938 is about 1409.7585117004.

The spelling of 2801780938 in words is "two billion, eight hundred one million, seven hundred eighty thousand, nine hundred thirty-eight".