1409668 has 12 divisors (see below), whose sum is σ = 2656780. Its totient is φ = 650592.

The previous prime is 1409659. The next prime is 1409677. The reversal of 1409668 is 8669041.

It is an interprime number because it is at equal distance from previous prime (1409659) and next prime (1409677).

It can be written as a sum of positive squares in 2 ways, for example, as 311364 + 1098304 = 558^2 + 1048^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13503 + ... + 13606.

2^1409668 is an apocalyptic number.

It is an amenable number.

1409668 is a deficient number, since it is larger than the sum of its proper divisors (1247112).

1409668 is a wasteful number, since it uses less digits than its factorization.

1409668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27126 (or 27124 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1409668 is about 1187.2944032547. The cubic root of 1409668 is about 112.1258152451.

The spelling of 1409668 in words is "one million, four hundred nine thousand, six hundred sixty-eight".