423402012 has 48 divisors (see below), whose sum is σ = 1197504000. Its totient is φ = 128303280.

The previous prime is 423401987. The next prime is 423402013. The reversal of 423402012 is 210204324.

423402012 is a `hidden beast` number, since 423 + 40 + 201 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423402013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177012 + ... + 179387.

It is an arithmetic number, because the mean of its divisors is an integer number (24948000).

Almost surely, 2^423402012 is an apocalyptic number.

It is an amenable number.

423402012 is an abundant number, since it is smaller than the sum of its proper divisors (774101988).

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

423402012 is a wasteful number, since it uses less digits than its factorization.

423402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356423 (or 356415 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 423402012 is about 20576.7347263846. The cubic root of 423402012 is about 750.9038064078.

Adding to 423402012 its reverse (210204324), we get a palindrome (633606336).

It can be divided in two parts, 4234020 and 12, that multiplied together give a triangular number (50808240 = T₁₀₀₈₀).

The spelling of 423402012 in words is "four hundred twenty-three million, four hundred two thousand, twelve".