76220256 has 96 divisors (see below), whose sum is σ = 231130368. Its totient is φ = 21542400.

The previous prime is 76220251. The next prime is 76220257. The reversal of 76220256 is 65202267.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76220251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67311 + ... + 68433.

It is an arithmetic number, because the mean of its divisors is an integer number (2407608).

Almost surely, 2^76220256 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 76220256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115565184).

76220256 is an abundant number, since it is smaller than the sum of its proper divisors (154910112).

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

76220256 is a wasteful number, since it uses less digits than its factorization.

76220256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 76220256 is about 8730.4212956764. The cubic root of 76220256 is about 423.9911591844.

The spelling of 76220256 in words is "seventy-six million, two hundred twenty thousand, two hundred fifty-six".