1773145072 has 40 divisors (see below), whose sum is σ = 3643650720. Its totient is φ = 834113280.

The previous prime is 1773145069. The next prime is 1773145079. The reversal of 1773145072 is 2705413771.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1773145079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17047 + ... + 61942.

It is an arithmetic number, because the mean of its divisors is an integer number (91091268).

Almost surely, 2^1773145072 is an apocalyptic number.

It is an amenable number.

1773145072 is an abundant number, since it is smaller than the sum of its proper divisors (1870505648).

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

1773145072 is a wasteful number, since it uses less digits than its factorization.

1773145072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79081 (or 79075 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 1773145072 is about 42108.7291662904. The cubic root of 1773145072 is about 1210.3605400571.

The spelling of 1773145072 in words is "one billion, seven hundred seventy-three million, one hundred forty-five thousand, seventy-two".