1880320020 has 96 divisors (see below), whose sum is σ = 5725375488. Its totient is φ = 459159552.

The previous prime is 1880320007. The next prime is 1880320021. The reversal of 1880320020 is 200230881.

It is a super-2 number, since 2×1880320020² = 7071206755225600800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880320021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12829 + ... + 62651.

It is an arithmetic number, because the mean of its divisors is an integer number (59639328).

Almost surely, 2^1880320020 is an apocalyptic number.

1880320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1880320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2862687744).

1880320020 is an abundant number, since it is smaller than the sum of its proper divisors (3845055468).

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

1880320020 is a wasteful number, since it uses less digits than its factorization.

1880320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49889 (or 49887 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1880320020 is about 43362.6569757897. The cubic root of 1880320020 is about 1234.2711845564.

The spelling of 1880320020 in words is "one billion, eight hundred eighty million, three hundred twenty thousand, twenty".