423927860 has 24 divisors (see below), whose sum is σ = 893569320. Its totient is φ = 168938624.

The previous prime is 423927851. The next prime is 423927869. The reversal of 423927860 is 68729324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (423927851) and next prime (423927869).

It can be written as a sum of positive squares in 4 ways, for example, as 22486564 + 401441296 = 4742^2 + 20036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423927869) 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, 34019 + ... + 44778.

It is an arithmetic number, because the mean of its divisors is an integer number (37232055).

Almost surely, 2^423927860 is an apocalyptic number.

It is an amenable number.

423927860 is an abundant number, since it is smaller than the sum of its proper divisors (469641460).

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

423927860 is a wasteful number, since it uses less digits than its factorization.

423927860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79075 (or 79073 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 423927860 is about 20589.5084934051. The cubic root of 423927860 is about 751.2145417524.

The spelling of 423927860 in words is "four hundred twenty-three million, nine hundred twenty-seven thousand, eight hundred sixty".