1408906 has 4 divisors (see below), whose sum is σ = 2113362. Its totient is φ = 704452.

The previous prime is 1408889. The next prime is 1408961. The reversal of 1408906 is 6098041.

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

It can be written as a sum of positive squares in only one way, i.e., 783225 + 625681 = 885^2 + 791^2 .

It is a super-2 number, since 2×1408906² = 3970032233672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352225 + ... + 352228.

2^1408906 is an apocalyptic number.

1408906 is a deficient number, since it is larger than the sum of its proper divisors (704456).

1408906 is an equidigital number, since it uses as much as digits as its factorization.

1408906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704455.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1408906 is about 1186.9734622139. The cubic root of 1408906 is about 112.1056082955.

The spelling of 1408906 in words is "one million, four hundred eight thousand, nine hundred six".