1409656 has 8 divisors (see below), whose sum is σ = 2643120. Its totient is φ = 704824.

The previous prime is 1409651. The next prime is 1409659. The reversal of 1409656 is 6569041.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88096 + ... + 88111.

It is an arithmetic number, because the mean of its divisors is an integer number (330390).

2^1409656 is an apocalyptic number.

It is an amenable number.

1409656 is a deficient number, since it is larger than the sum of its proper divisors (1233464).

1409656 is a wasteful number, since it uses less digits than its factorization.

1409656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176213 (or 176209 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1409656 is about 1187.2893497375. The cubic root of 1409656 is about 112.1254970819.

The spelling of 1409656 in words is "one million, four hundred nine thousand, six hundred fifty-six".