256832212 has 48 divisors (see below), whose sum is σ = 559907712. Its totient is φ = 100368000.

The previous prime is 256832203. The next prime is 256832221. The reversal of 256832212 is 212238652.

It is an interprime number because it is at equal distance from previous prime (256832203) and next prime (256832221).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25962 + ... + 34462.

It is an arithmetic number, because the mean of its divisors is an integer number (11664744).

Almost surely, 2^256832212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256832212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279953856).

256832212 is an abundant number, since it is smaller than the sum of its proper divisors (303075500).

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

256832212 is a wasteful number, since it uses less digits than its factorization.

256832212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608 (or 8606 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 256832212 is about 16025.9855235177. The cubic root of 256832212 is about 635.6477256192.

The spelling of 256832212 in words is "two hundred fifty-six million, eight hundred thirty-two thousand, two hundred twelve".