76449228 has 12 divisors (see below), whose sum is σ = 178381560. Its totient is φ = 25483072.

The previous prime is 76449209. The next prime is 76449239. The reversal of 76449228 is 82294467.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 76449228.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3185373 + ... + 3185396.

It is an arithmetic number, because the mean of its divisors is an integer number (14865130).

Almost surely, 2^76449228 is an apocalyptic number.

It is an amenable number.

76449228 is an abundant number, since it is smaller than the sum of its proper divisors (101932332).

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

76449228 is a wasteful number, since it uses less digits than its factorization.

76449228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370776 (or 6370774 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 76449228 is about 8743.5249184754. The cubic root of 76449228 is about 424.4153030033.

The spelling of 76449228 in words is "seventy-six million, four hundred forty-nine thousand, two hundred twenty-eight".