2801905381 has 16 divisors (see below), whose sum is σ = 3074355648. Its totient is φ = 2532457600.

The previous prime is 2801905349. The next prime is 2801905391. The reversal of 2801905381 is 1835091082.

2801905381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2801905381 - 2⁵ = 2801905349 is a prime.

It is a super-2 number, since 2×2801905381² = 15701347528153510322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2801905381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801905391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1891161 + ... + 1892641.

It is an arithmetic number, because the mean of its divisors is an integer number (192147228).

Almost surely, 2^2801905381 is an apocalyptic number.

It is an amenable number.

2801905381 is a deficient number, since it is larger than the sum of its proper divisors (272450267).

2801905381 is a wasteful number, since it uses less digits than its factorization.

2801905381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 2801905381 is about 52933.0273175453. The cubic root of 2801905381 is about 1409.7793831848.

The spelling of 2801905381 in words is "two billion, eight hundred one million, nine hundred five thousand, three hundred eighty-one".