993000426 has 32 divisors (see below), whose sum is σ = 2241259200. Its totient is φ = 290532480.

The previous prime is 993000389. The next prime is 993000431. The reversal of 993000426 is 624000399.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257491 + ... + 261318.

It is an arithmetic number, because the mean of its divisors is an integer number (70039350).

Almost surely, 2^993000426 is an apocalyptic number.

993000426 is an abundant number, since it is smaller than the sum of its proper divisors (1248258774).

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

993000426 is a wasteful number, since it uses less digits than its factorization.

993000426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518854.

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

The square root of 993000426 is about 31511.9092725274. The cubic root of 993000426 is about 997.6613436166.

The spelling of 993000426 in words is "nine hundred ninety-three million, four hundred twenty-six", and thus it is an aban number.