993426 has 48 divisors (see below), whose sum is σ = 2407680. Its totient is φ = 272160.

The previous prime is 993407. The next prime is 993431. The reversal of 993426 is 624399.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9060 + ... + 9168.

It is an arithmetic number, because the mean of its divisors is an integer number (50160).

2⁹⁹³⁴²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 993426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203840).

993426 is an abundant number, since it is smaller than the sum of its proper divisors (1414254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

993426 is a wasteful number, since it uses less digits than its factorization.

993426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 152 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 993426 is about 996.7075799852. The cubic root of 993426 is about 99.7803847110.

The spelling of 993426 in words is "nine hundred ninety-three thousand, four hundred twenty-six".