1773273216 has 256 divisors, whose sum is σ = 5669959680. Its totient is φ = 483840000.

The previous prime is 1773273197. The next prime is 1773273217. The reversal of 1773273216 is 6123723771.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1773273217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2360841 + ... + 2361591.

It is an arithmetic number, because the mean of its divisors is an integer number (22148280).

Almost surely, 2^1773273216 is an apocalyptic number.

1773273216 is a gapful number since it is divisible by the number (16) 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 1773273216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2834979840).

1773273216 is an abundant number, since it is smaller than the sum of its proper divisors (3896686464).

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

1773273216 is a wasteful number, since it uses less digits than its factorization.

1773273216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 823 counting only the distinct ones).

The product of its digits is 74088, while the sum is 39.

The square root of 1773273216 is about 42110.2507235471. The cubic root of 1773273216 is about 1210.3896966683.

Adding to 1773273216 its reverse (6123723771), we get a palindrome (7896996987).

The spelling of 1773273216 in words is "one billion, seven hundred seventy-three million, two hundred seventy-three thousand, two hundred sixteen".