993278422 has 8 divisors (see below), whose sum is σ = 1490055336. Its totient is φ = 496593312.

The previous prime is 993278413. The next prime is 993278441. The reversal of 993278422 is 224872399.

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

It is a super-2 number, since 2×993278422² = 1973204047221620168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 20718 + ... + 49150.

It is an arithmetic number, because the mean of its divisors is an integer number (186256917).

Almost surely, 2^993278422 is an apocalyptic number.

993278422 is a deficient number, since it is larger than the sum of its proper divisors (496776914).

993278422 is a wasteful number, since it uses less digits than its factorization.

993278422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45902.

The product of its digits is 435456, while the sum is 46.

The square root of 993278422 is about 31516.3199311087. The cubic root of 993278422 is about 997.7544352133.

The spelling of 993278422 in words is "nine hundred ninety-three million, two hundred seventy-eight thousand, four hundred twenty-two".