2002578780 has 24 divisors (see below), whose sum is σ = 5607220752. Its totient is φ = 534020992.

The previous prime is 2002578779. The next prime is 2002578817. The reversal of 2002578780 is 878752002.

It is a super-3 number, since 3×2002578780³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 16688097 + ... + 16688216.

It is an arithmetic number, because the mean of its divisors is an integer number (233634198).

Almost surely, 2^2002578780 is an apocalyptic number.

2002578780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002578780 is an abundant number, since it is smaller than the sum of its proper divisors (3604641972).

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

2002578780 is a wasteful number, since it uses less digits than its factorization.

2002578780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33376325 (or 33376323 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 2002578780 is about 44750.1818990717. The cubic root of 2002578780 is about 1260.4623271898.

The spelling of 2002578780 in words is "two billion, two million, five hundred seventy-eight thousand, seven hundred eighty".