2004477780 has 24 divisors (see below), whose sum is σ = 5612537952. Its totient is φ = 534527392.

The previous prime is 2004477773. The next prime is 2004477791. The reversal of 2004477780 is 877744002.

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, 16703922 + ... + 16704041.

It is an arithmetic number, because the mean of its divisors is an integer number (233855748).

Almost surely, 2^2004477780 is an apocalyptic number.

2004477780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004477780 is an abundant number, since it is smaller than the sum of its proper divisors (3608060172).

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

2004477780 is a wasteful number, since it uses less digits than its factorization.

2004477780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33407975 (or 33407973 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 2004477780 is about 44771.3946622171. The cubic root of 2004477780 is about 1260.8606239222.

The spelling of 2004477780 in words is "two billion, four million, four hundred seventy-seven thousand, seven hundred eighty".