4992028409 has 4 divisors (see below), whose sum is σ = 5076639120. Its totient is φ = 4907417700.

The previous prime is 4992028387. The next prime is 4992028411. The reversal of 4992028409 is 9048202994.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9048202994 = 2 ⋅4524101497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4992028409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4992028439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42305267 + ... + 42305384.

It is an arithmetic number, because the mean of its divisors is an integer number (1269159780).

Almost surely, 2^4992028409 is an apocalyptic number.

It is an amenable number.

4992028409 is a deficient number, since it is larger than the sum of its proper divisors (84610711).

4992028409 is an equidigital number, since it uses as much as digits as its factorization.

4992028409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84610710.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 4992028409 is about 70654.2879732009. The cubic root of 4992028409 is about 1709.0667147126.

The spelling of 4992028409 in words is "four billion, nine hundred ninety-two million, twenty-eight thousand, four hundred nine".