3052398781 has 4 divisors (see below), whose sum is σ = 3052532700. Its totient is φ = 3052264864.

The previous prime is 3052398751. The next prime is 3052398809. The reversal of 3052398781 is 1878932503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307686681 + 2744712100 = 17541^2 + 52390^2 .

It is a cyclic number.

It is not a de Polignac number, because 3052398781 - 2²³ = 3044010173 is a prime.

It is a super-2 number, since 2×3052398781² = 18634276636500571922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3052398721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23266 + ... + 81523.

It is an arithmetic number, because the mean of its divisors is an integer number (763133175).

Almost surely, 2^3052398781 is an apocalyptic number.

It is an amenable number.

3052398781 is a deficient number, since it is larger than the sum of its proper divisors (133919).

3052398781 is a wasteful number, since it uses less digits than its factorization.

3052398781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133918.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 3052398781 is about 55248.5183602239. The cubic root of 3052398781 is about 1450.5980538927.

The spelling of 3052398781 in words is "three billion, fifty-two million, three hundred ninety-eight thousand, seven hundred eighty-one".