1606304256 has 80 divisors (see below), whose sum is σ = 4287728544. Its totient is φ = 534380544.

The previous prime is 1606304243. The next prime is 1606304269. The reversal of 1606304256 is 6524036061.

It is an interprime number because it is at equal distance from previous prime (1606304243) and next prime (1606304269).

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, 1392576 + ... + 1393728.

Almost surely, 2^1606304256 is an apocalyptic number.

1606304256 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 1606304256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2143864272).

1606304256 is an abundant number, since it is smaller than the sum of its proper divisors (2681424288).

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

1606304256 is an equidigital number, since it uses as much as digits as its factorization.

1606304256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1606304256 is about 40078.7257282464. The cubic root of 1606304256 is about 1171.1412285000.

The spelling of 1606304256 in words is "one billion, six hundred six million, three hundred four thousand, two hundred fifty-six".