1773946020 has 288 divisors, whose sum is σ = 6637317120. Its totient is φ = 349090560.

The previous prime is 1773945961. The next prime is 1773946021. The reversal of 1773946020 is 206493771.

It is a self number, because there is not a number n which added to its sum of digits gives 1773946020.

It is not an unprimeable number, because it can be changed into a prime (1773946021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 613017 + ... + 615903.

It is an arithmetic number, because the mean of its divisors is an integer number (23046240).

Almost surely, 2^1773946020 is an apocalyptic number.

1773946020 is a gapful number since it is divisible by the number (10) 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 1773946020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3318658560).

1773946020 is an abundant number, since it is smaller than the sum of its proper divisors (4863371100).

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

1773946020 is a wasteful number, since it uses less digits than its factorization.

1773946020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2934 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 1773946020 is about 42118.2385671576. The cubic root of 1773946020 is about 1210.5427567554.

The spelling of 1773946020 in words is "one billion, seven hundred seventy-three million, nine hundred forty-six thousand, twenty".