1789722816 has 112 divisors (see below), whose sum is σ = 5543946240. Its totient is φ = 498862080.

The previous prime is 1789722799. The next prime is 1789722833. The reversal of 1789722816 is 6182279871.

It is an interprime number because it is at equal distance from previous prime (1789722799) and next prime (1789722833).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×1789722816² = 6406215516221939712, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 38865 + ... + 71343.

It is an arithmetic number, because the mean of its divisors is an integer number (49499520).

Almost surely, 2^1789722816 is an apocalyptic number.

1789722816 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 1789722816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2771973120).

1789722816 is an abundant number, since it is smaller than the sum of its proper divisors (3754223424).

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

1789722816 is a wasteful number, since it uses less digits than its factorization.

1789722816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32542 (or 32532 counting only the distinct ones).

The product of its digits is 677376, while the sum is 51.

The square root of 1789722816 is about 42305.1157190239. The cubic root of 1789722816 is about 1214.1208712714.

The spelling of 1789722816 in words is "one billion, seven hundred eighty-nine million, seven hundred twenty-two thousand, eight hundred sixteen".