2055940128 has 72 divisors (see below), whose sum is σ = 6378096816. Its totient is φ = 623011200.

The previous prime is 2055940127. The next prime is 2055940171. The reversal of 2055940128 is 8210495502.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2055940092 and 2055940101.

It is not an unprimeable number, because it can be changed into a prime (2055940127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321318 + ... + 327653.

It is an arithmetic number, because the mean of its divisors is an integer number (88584678).

Almost surely, 2^2055940128 is an apocalyptic number.

It is an amenable number.

2055940128 is an abundant number, since it is smaller than the sum of its proper divisors (4322156688).

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

2055940128 is a wasteful number, since it uses less digits than its factorization.

2055940128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648998 (or 648987 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 2055940128 is about 45342.4759800344. The cubic root of 2055940128 is about 1271.5598928353.

The spelling of 2055940128 in words is "two billion, fifty-five million, nine hundred forty thousand, one hundred twenty-eight".