4490930381 has 4 divisors (see below), whose sum is σ = 5132491872. Its totient is φ = 3849368892.

The previous prime is 4490930369. The next prime is 4490930387. The reversal of 4490930381 is 1830390944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4490930381 is a prime.

It is a super-2 number, since 2×4490930381² = 40336911373977610322, 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 (4490930387) 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, 320780735 + ... + 320780748.

It is an arithmetic number, because the mean of its divisors is an integer number (1283122968).

Almost surely, 2^4490930381 is an apocalyptic number.

It is an amenable number.

4490930381 is a deficient number, since it is larger than the sum of its proper divisors (641561491).

4490930381 is an equidigital number, since it uses as much as digits as its factorization.

4490930381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641561490.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 4490930381 is about 67014.4042799755. The cubic root of 4490930381 is about 1649.8537220798.

The spelling of 4490930381 in words is "four billion, four hundred ninety million, nine hundred thirty thousand, three hundred eighty-one".