1572256 has 24 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 673728.

The previous prime is 1572253. The next prime is 1572271. The reversal of 1572256 is 6522751.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1572251) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3286 + ... + 3733.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^1572256 is an apocalyptic number.

1572256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1572256 is an abundant number, since it is smaller than the sum of its proper divisors (1965824).

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

1572256 is an equidigital number, since it uses as much as digits as its factorization.

1572256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036 (or 7028 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 1572256 is about 1253.8963274530. The cubic root of 1572256 is about 116.2807310746.

The spelling of 1572256 in words is "one million, five hundred seventy-two thousand, two hundred fifty-six".