1406668 has 6 divisors (see below), whose sum is σ = 2461676. Its totient is φ = 703332.

The previous prime is 1406651. The next prime is 1406677. The reversal of 1406668 is 8666041.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175830 + ... + 175837.

2^1406668 is an apocalyptic number.

It is an amenable number.

1406668 is a deficient number, since it is larger than the sum of its proper divisors (1055008).

1406668 is a wasteful number, since it uses less digits than its factorization.

1406668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351671 (or 351669 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1406668 is about 1186.0303537431. The cubic root of 1406668 is about 112.0462181698.

The spelling of 1406668 in words is "one million, four hundred six thousand, six hundred sixty-eight".