2055392040 has 128 divisors (see below), whose sum is σ = 6661388160. Its totient is φ = 504351744.

The previous prime is 2055391999. The next prime is 2055392041. The reversal of 2055392040 is 402935502.

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

It is a junction number, because it is equal to n+sod(n) for n = 2055391989 and 2055392007.

It is not an unprimeable number, because it can be changed into a prime (2055392041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539422 + ... + 543218.

It is an arithmetic number, because the mean of its divisors is an integer number (52042095).

Almost surely, 2^2055392040 is an apocalyptic number.

2055392040 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 2055392040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3330694080).

2055392040 is an abundant number, since it is smaller than the sum of its proper divisors (4605996120).

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

2055392040 is a wasteful number, since it uses less digits than its factorization.

2055392040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2055392040 is about 45336.4317078440. The cubic root of 2055392040 is about 1271.4468887893.

The spelling of 2055392040 in words is "two billion, fifty-five million, three hundred ninety-two thousand, forty".