1993000340 has 24 divisors (see below), whose sum is σ = 4264270920. Its totient is φ = 782158208.

The previous prime is 1993000313. The next prime is 1993000343. The reversal of 1993000340 is 430003991.

It can be written as a sum of positive squares in 4 ways, for example, as 365039236 + 1627961104 = 19106^2 + 40348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993000343) 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, 939035 + ... + 941154.

It is an arithmetic number, because the mean of its divisors is an integer number (177677955).

Almost surely, 2^1993000340 is an apocalyptic number.

1993000340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1993000340 is an abundant number, since it is smaller than the sum of its proper divisors (2271270580).

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

1993000340 is a wasteful number, since it uses less digits than its factorization.

1993000340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880251 (or 1880249 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 1993000340 is about 44643.0323790846. The cubic root of 1993000340 is about 1258.4494953311.

The spelling of 1993000340 in words is "one billion, nine hundred ninety-three million, three hundred forty", and thus it is an aban number.