2002785380 has 24 divisors (see below), whose sum is σ = 4341523200. Its totient is φ = 775271520.

The previous prime is 2002785377. The next prime is 2002785391. The reversal of 2002785380 is 835872002.

It is a happy number.

It is a super-2 number, since 2×2002785380² = 8022298556683488800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2002785380.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614530 + ... + 1615769.

It is an arithmetic number, because the mean of its divisors is an integer number (180896800).

Almost surely, 2^2002785380 is an apocalyptic number.

2002785380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002785380 is an abundant number, since it is smaller than the sum of its proper divisors (2338737820).

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

2002785380 is a wasteful number, since it uses less digits than its factorization.

2002785380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230339 (or 3230337 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 2002785380 is about 44752.4902100431. The cubic root of 2002785380 is about 1260.5056717288.

The spelling of 2002785380 in words is "two billion, two million, seven hundred eighty-five thousand, three hundred eighty".