2190551040 has 480 divisors, whose sum is σ = 8324316000. Its totient is φ = 549421056.

The previous prime is 2190551039. The next prime is 2190551063. The reversal of 2190551040 is 401550912.

2190551040 is a `hidden beast` number, since 21 + 90 + 5 + 510 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is a junction number, because it is equal to n+sod(n) for n = 2190550995 and 2190551013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15759291 + ... + 15759429.

It is an arithmetic number, because the mean of its divisors is an integer number (17342325).

Almost surely, 2^2190551040 is an apocalyptic number.

2190551040 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 2190551040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4162158000).

2190551040 is an abundant number, since it is smaller than the sum of its proper divisors (6133764960).

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

2190551040 is a wasteful number, since it uses less digits than its factorization.

2190551040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 2190551040 is about 46803.3229589524. The cubic root of 2190551040 is about 1298.7267691733.

The spelling of 2190551040 in words is "two billion, one hundred ninety million, five hundred fifty-one thousand, forty".