1556946 has 24 divisors (see below), whose sum is σ = 3426384. Its totient is φ = 510840.

The previous prime is 1556927. The next prime is 1556963. The reversal of 1556946 is 6496551.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1556946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561 + ... + 1851.

It is an arithmetic number, because the mean of its divisors is an integer number (142766).

2^1556946 is an apocalyptic number.

1556946 is an abundant number, since it is smaller than the sum of its proper divisors (1869438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1556946 is a wasteful number, since it uses less digits than its factorization.

1556946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1363 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 1556946 is about 1247.7764222809. The cubic root of 1556946 is about 115.9020675623.

The spelling of 1556946 in words is "one million, five hundred fifty-six thousand, nine hundred forty-six".