993944419 has 8 divisors (see below), whose sum is σ = 1074269840. Its totient is φ = 914171616.

The previous prime is 993944387. The next prime is 993944437. The reversal of 993944419 is 914449399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 993944419 - 2⁵ = 993944387 is a prime.

It is a super-2 number, since 2×993944419² = 1975851016122495122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993944449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134409 + ... + 141610.

It is an arithmetic number, because the mean of its divisors is an integer number (134283730).

Almost surely, 2^993944419 is an apocalyptic number.

993944419 is a deficient number, since it is larger than the sum of its proper divisors (80325421).

993944419 is a wasteful number, since it uses less digits than its factorization.

993944419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276309.

The product of its digits is 1259712, while the sum is 52.

The square root of 993944419 is about 31526.8840674114. The cubic root of 993944419 is about 997.9773847858.

The spelling of 993944419 in words is "nine hundred ninety-three million, nine hundred forty-four thousand, four hundred nineteen".