2020550400 has 432 divisors, whose sum is σ = 8090315520. Its totient is φ = 489369600.

The previous prime is 2020550387. The next prime is 2020550489. The reversal of 2020550400 is 40550202.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1900269 + ... + 1901331.

Almost surely, 2^2020550400 is an apocalyptic number.

2020550400 is a gapful number since it is divisible by the number (20) 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 2020550400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4045157760).

2020550400 is an abundant number, since it is smaller than the sum of its proper divisors (6069765120).

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

2020550400 is a wasteful number, since it uses less digits than its factorization.

2020550400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2020550400 is about 44950.5328110802. The cubic root of 2020550400 is about 1264.2216670473.

The spelling of 2020550400 in words is "two billion, twenty million, five hundred fifty thousand, four hundred".