2192554980 has 648 divisors, whose sum is σ = 9046791936. Its totient is φ = 440899200.

The previous prime is 2192554943. The next prime is 2192554981. The reversal of 2192554980 is 894552912.

It is a happy number.

2192554980 is a `hidden beast` number, since 2 + 1 + 9 + 2 + 554 + 98 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192554981) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 70727565 + ... + 70727595.

Almost surely, 2^2192554980 is an apocalyptic number.

2192554980 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 2192554980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4523395968).

2192554980 is an abundant number, since it is smaller than the sum of its proper divisors (6854236956).

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

2192554980 is a wasteful number, since it uses less digits than its factorization.

2192554980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 2192554980 is about 46824.7261604379. The cubic root of 2192554980 is about 1299.1226782783.

The spelling of 2192554980 in words is "two billion, one hundred ninety-two million, five hundred fifty-four thousand, nine hundred eighty".