1634604256 has 48 divisors (see below), whose sum is σ = 3337362000. Its totient is φ = 787161088.

The previous prime is 1634604253. The next prime is 1634604259. The reversal of 1634604256 is 6524064361.

It is an interprime number because it is at equal distance from previous prime (1634604253) and next prime (1634604259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634604253) 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 7 ways as a sum of consecutive naturals, for example, 414711 + ... + 418633.

It is an arithmetic number, because the mean of its divisors is an integer number (69528375).

Almost surely, 2^1634604256 is an apocalyptic number.

1634604256 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 1634604256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668681000).

1634604256 is an abundant number, since it is smaller than the sum of its proper divisors (1702757744).

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

1634604256 is a wasteful number, since it uses less digits than its factorization.

1634604256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411 (or 4403 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1634604256 is about 40430.2393759918. The cubic root of 1634604256 is about 1177.9789823521.

The spelling of 1634604256 in words is "one billion, six hundred thirty-four million, six hundred four thousand, two hundred fifty-six".