423966156 has 24 divisors (see below), whose sum is σ = 989588544. Its totient is φ = 141274320.

The previous prime is 423966149. The next prime is 423966157. The reversal of 423966156 is 651669324.

It is not an unprimeable number, because it can be changed into a prime (423966157) 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, 62071 + ... + 68561.

It is an arithmetic number, because the mean of its divisors is an integer number (41232856).

Almost surely, 2^423966156 is an apocalyptic number.

It is an amenable number.

423966156 is an abundant number, since it is smaller than the sum of its proper divisors (565622388).

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

423966156 is a wasteful number, since it uses less digits than its factorization.

423966156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941 (or 11939 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 423966156 is about 20590.4384606059. The cubic root of 423966156 is about 751.2371616748.

The spelling of 423966156 in words is "four hundred twenty-three million, nine hundred sixty-six thousand, one hundred fifty-six".