423578772 has 36 divisors (see below), whose sum is σ = 1071348096. Its totient is φ = 141109200.

The previous prime is 423578747. The next prime is 423578773. The reversal of 423578772 is 277875324.

423578772 is a `hidden beast` number, since 4 + 2 + 3 + 578 + 7 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423578773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100573 + ... + 104699.

Almost surely, 2^423578772 is an apocalyptic number.

It is an amenable number.

423578772 is an abundant number, since it is smaller than the sum of its proper divisors (647769324).

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

423578772 is a wasteful number, since it uses less digits than its factorization.

423578772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6988 (or 6983 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 423578772 is about 20581.0294203181. The cubic root of 423578772 is about 751.0082865369.

The spelling of 423578772 in words is "four hundred twenty-three million, five hundred seventy-eight thousand, seven hundred seventy-two".