2190554448 has 80 divisors (see below), whose sum is σ = 6104984256. Its totient is φ = 674252800.

The previous prime is 2190554447. The next prime is 2190554467. The reversal of 2190554448 is 8444550912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190554447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17923 + ... + 68573.

Almost surely, 2^2190554448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2190554448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3052492128).

2190554448 is an abundant number, since it is smaller than the sum of its proper divisors (3914429808).

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

2190554448 is a wasteful number, since it uses less digits than its factorization.

2190554448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50732 (or 50726 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 2190554448 is about 46803.3593666096. The cubic root of 2190554448 is about 1298.7274426810.

The spelling of 2190554448 in words is "two billion, one hundred ninety million, five hundred fifty-four thousand, four hundred forty-eight".