423812 has 6 divisors (see below), whose sum is σ = 741678. Its totient is φ = 211904.

The previous prime is 423803. The next prime is 423823. The reversal of 423812 is 218324.

423812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 244036 + 179776 = 494^2 + 424^2 .

It is a super-2 number, since 2×423812² = 359233222688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52973 + ... + 52980.

It is an arithmetic number, because the mean of its divisors is an integer number (123613).

2⁴²³⁸¹² is an apocalyptic number.

It is an amenable number.

423812 is a deficient number, since it is larger than the sum of its proper divisors (317866).

423812 is a wasteful number, since it uses less digits than its factorization.

423812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105957 (or 105955 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 423812 is about 651.0084484859. The cubic root of 423812 is about 75.1146099567.

The spelling of 423812 in words is "four hundred twenty-three thousand, eight hundred twelve".