2041721880 has 64 divisors (see below), whose sum is σ = 6682003200. Its totient is φ = 494962560.

The previous prime is 2041721861. The next prime is 2041721909. The reversal of 2041721880 is 881271402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772060 + ... + 774699.

It is an arithmetic number, because the mean of its divisors is an integer number (104406300).

Almost surely, 2^2041721880 is an apocalyptic number.

2041721880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2041721880 is an abundant number, since it is smaller than the sum of its proper divisors (4640281320).

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

2041721880 is a wasteful number, since it uses less digits than its factorization.

2041721880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546784 (or 1546780 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 2041721880 is about 45185.4166739668. The cubic root of 2041721880 is about 1268.6218708565.

The spelling of 2041721880 in words is "two billion, forty-one million, seven hundred twenty-one thousand, eight hundred eighty".