1490256 has 60 divisors (see below), whose sum is σ = 4255680. Its totient is φ = 486720.

The previous prime is 1490243. The next prime is 1490257. The reversal of 1490256 is 6520941.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490257) by changing a digit.

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, 11311 + ... + 11441.

It is an arithmetic number, because the mean of its divisors is an integer number (70928).

2^1490256 is an apocalyptic number.

1490256 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 1490256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127840).

1490256 is an abundant number, since it is smaller than the sum of its proper divisors (2765424).

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

1490256 is a wasteful number, since it uses less digits than its factorization.

1490256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1490256 is about 1220.7604187555. The cubic root of 1490256 is about 114.2230168007.

The spelling of 1490256 in words is "one million, four hundred ninety thousand, two hundred fifty-six".