1239393000 has 128 divisors (see below), whose sum is σ = 3898552320. Its totient is φ = 327801600.

The previous prime is 1239392983. The next prime is 1239393013. The reversal of 1239393000 is 3939321.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 379374 + ... + 382626.

It is an arithmetic number, because the mean of its divisors is an integer number (30457440).

Almost surely, 2^1239393000 is an apocalyptic number.

1239393000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1239393000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1949276160).

1239393000 is an abundant number, since it is smaller than the sum of its proper divisors (2659159320).

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

1239393000 is a wasteful number, since it uses less digits than its factorization.

1239393000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 1239393000 is about 35205.0138474621. The cubic root of 1239393000 is about 1074.1617406021.

The spelling of 1239393000 in words is "one billion, two hundred thirty-nine million, three hundred ninety-three thousand".