1723420056 has 16 divisors (see below), whose sum is σ = 4308550200. Its totient is φ = 574473344.

The previous prime is 1723419977. The next prime is 1723420057. The reversal of 1723420056 is 6500243271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1723420057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35904561 + ... + 35904608.

Almost surely, 2^1723420056 is an apocalyptic number.

It is an amenable number.

1723420056 is an abundant number, since it is smaller than the sum of its proper divisors (2585130144).

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

1723420056 is a wasteful number, since it uses less digits than its factorization.

1723420056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71809178 (or 71809174 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1723420056 is about 41514.0946667514. The cubic root of 1723420056 is about 1198.9388897586.

The spelling of 1723420056 in words is "one billion, seven hundred twenty-three million, four hundred twenty thousand, fifty-six".