1632256 has 24 divisors (see below), whose sum is σ = 3267810. Its totient is φ = 815104.

The previous prime is 1632227. The next prime is 1632259. The reversal of 1632256 is 6522361.

It can be written as a sum of positive squares in only one way, i.e., 1401856 + 230400 = 1184^2 + 480^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1632256.

It is not an unprimeable number, because it can be changed into a prime (1632259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1650 + ... + 2446.

2^1632256 is an apocalyptic number.

1632256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1632256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633905).

1632256 is an abundant number, since it is smaller than the sum of its proper divisors (1635554).

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

1632256 is an frugal number, since it uses more digits than its factorization.

1632256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 799 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1632256 is about 1277.5977457713. The cubic root of 1632256 is about 117.7414621103.

The spelling of 1632256 in words is "one million, six hundred thirty-two thousand, two hundred fifty-six".