2080180440 has 480 divisors, whose sum is σ = 7891765200. Its totient is φ = 490613760.

The previous prime is 2080180433. The next prime is 2080180447. The reversal of 2080180440 is 440810802.

2080180440 is a `hidden beast` number, since 208 + 0 + 18 + 0 + 440 = 666.

It is an interprime number because it is at equal distance from previous prime (2080180433) and next prime (2080180447).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2080180447) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15879175 + ... + 15879305.

Almost surely, 2^2080180440 is an apocalyptic number.

2080180440 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 2080180440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3945882600).

2080180440 is an abundant number, since it is smaller than the sum of its proper divisors (5811584760).

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

2080180440 is a wasteful number, since it uses less digits than its factorization.

2080180440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 2080180440 is about 45608.9951654276. The cubic root of 2080180440 is about 1276.5377708545.

The spelling of 2080180440 in words is "two billion, eighty million, one hundred eighty thousand, four hundred forty".