4048892981 has 12 divisors (see below), whose sum is σ = 4861872000. Its totient is φ = 3358527480.

The previous prime is 4048892977. The next prime is 4048892987. The reversal of 4048892981 is 1892988404.

It is a happy number.

4048892981 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 4048892981 - 2² = 4048892977 is a prime.

It is a super-2 number, since 2×4048892981² = 32787068743182132722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4048892987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1331231 + ... + 1334268.

It is an arithmetic number, because the mean of its divisors is an integer number (405156000).

Almost surely, 2^4048892981 is an apocalyptic number.

It is an amenable number.

4048892981 is a deficient number, since it is larger than the sum of its proper divisors (812979019).

4048892981 is a wasteful number, since it uses less digits than its factorization.

4048892981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665544 (or 2665537 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The square root of 4048892981 is about 63630.9121496777. The cubic root of 4048892981 is about 1593.8426080423.

The spelling of 4048892981 in words is "four billion, forty-eight million, eight hundred ninety-two thousand, nine hundred eighty-one".