2001378592 has 48 divisors (see below), whose sum is σ = 4043045664. Its totient is φ = 974656000.

The previous prime is 2001378583. The next prime is 2001378629. The reversal of 2001378592 is 2958731002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273167 + ... + 1274737.

It is an arithmetic number, because the mean of its divisors is an integer number (84230118).

Almost surely, 2^2001378592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001378592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021522832).

2001378592 is an abundant number, since it is smaller than the sum of its proper divisors (2041667072).

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

2001378592 is a wasteful number, since it uses less digits than its factorization.

2001378592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593 (or 2585 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2001378592 is about 44736.7700219853. The cubic root of 2001378592 is about 1260.2104695864.

The spelling of 2001378592 in words is "two billion, one million, three hundred seventy-eight thousand, five hundred ninety-two".