2149774000 has 320 divisors, whose sum is σ = 6174604800. Its totient is φ = 715392000.

The previous prime is 2149773979. The next prime is 2149774027. The reversal of 2149774000 is 4779412.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 15465931 + ... + 15466069.

It is an arithmetic number, because the mean of its divisors is an integer number (19295640).

Almost surely, 2^2149774000 is an apocalyptic number.

2149774000 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 2149774000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3087302400).

2149774000 is an abundant number, since it is smaller than the sum of its proper divisors (4024830800).

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

2149774000 is a wasteful number, since it uses less digits than its factorization.

2149774000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 2149774000 is about 46365.6553927581. The cubic root of 2149774000 is about 1290.6176558629.

The spelling of 2149774000 in words is "two billion, one hundred forty-nine million, seven hundred seventy-four thousand".