1206406 has 4 divisors (see below), whose sum is σ = 1809612. Its totient is φ = 603202.

The previous prime is 1206391. The next prime is 1206407. The reversal of 1206406 is 6046021.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301600 + ... + 301603.

It is an arithmetic number, because the mean of its divisors is an integer number (452403).

2^1206406 is an apocalyptic number.

1206406 is a deficient number, since it is larger than the sum of its proper divisors (603206).

1206406 is an equidigital number, since it uses as much as digits as its factorization.

1206406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603205.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1206406 is about 1098.3651487552. The cubic root of 1206406 is about 106.4546156188.

The spelling of 1206406 in words is "one million, two hundred six thousand, four hundred six".