2150578020 has 96 divisors (see below), whose sum is σ = 6099504768. Its totient is φ = 566111232.

The previous prime is 2150578007. The next prime is 2150578037. The reversal of 2150578020 is 208750512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2933574 + ... + 2934306.

It is an arithmetic number, because the mean of its divisors is an integer number (63536508).

Almost surely, 2^2150578020 is an apocalyptic number.

2150578020 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 2150578020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3049752384).

2150578020 is an abundant number, since it is smaller than the sum of its proper divisors (3948926748).

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

2150578020 is a wasteful number, since it uses less digits than its factorization.

2150578020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 2150578020 is about 46374.3250085648. The cubic root of 2150578020 is about 1290.7785337147.

The spelling of 2150578020 in words is "two billion, one hundred fifty million, five hundred seventy-eight thousand, twenty".