406012 has 6 divisors (see below), whose sum is σ = 710528. Its totient is φ = 203004.

The previous prime is 405997. The next prime is 406013. The reversal of 406012 is 210604.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 405983 and 406001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50748 + ... + 50755.

2⁴⁰⁶⁰¹² is an apocalyptic number.

It is an amenable number.

406012 is a deficient number, since it is larger than the sum of its proper divisors (304516).

406012 is a wasteful number, since it uses less digits than its factorization.

406012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101507 (or 101505 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 406012 is about 637.1907092857. The cubic root of 406012 is about 74.0479358272.

Adding to 406012 its reverse (210604), we get a palindrome (616616).

The spelling of 406012 in words is "four hundred six thousand, twelve".