1672256 has 56 divisors (see below), whose sum is σ = 3703320. Its totient is φ = 745472.

The previous prime is 1672243. The next prime is 1672271. The reversal of 1672256 is 6522761.

It can be written as a sum of positive squares in 4 ways, for example, as 640000 + 1032256 = 800^2 + 1016^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31526 + ... + 31578.

2^1672256 is an apocalyptic number.

1672256 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 1672256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1851660).

1672256 is an abundant number, since it is smaller than the sum of its proper divisors (2031064).

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

1672256 is a wasteful number, since it uses less digits than its factorization.

1672256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 101 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 1672256 is about 1293.1573763467. The cubic root of 1672256 is about 118.6955000143.

The spelling of 1672256 in words is "one million, six hundred seventy-two thousand, two hundred fifty-six".