406511212 has 12 divisors (see below), whose sum is σ = 735925680. Its totient is φ = 196246736.

The previous prime is 406511197. The next prime is 406511227. The reversal of 406511212 is 212115604.

It is an interprime number because it is at equal distance from previous prime (406511197) and next prime (406511227).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752088 + ... + 1752319.

It is an arithmetic number, because the mean of its divisors is an integer number (61327140).

Almost surely, 2^406511212 is an apocalyptic number.

It is an amenable number.

406511212 is a deficient number, since it is larger than the sum of its proper divisors (329414468).

406511212 is a wasteful number, since it uses less digits than its factorization.

406511212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504440 (or 3504438 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 406511212 is about 20162.1232016869. The cubic root of 406511212 is about 740.7827194048.

Adding to 406511212 its reverse (212115604), we get a palindrome (618626816).

The spelling of 406511212 in words is "four hundred six million, five hundred eleven thousand, two hundred twelve".