76440228 has 48 divisors (see below), whose sum is σ = 189552384. Its totient is φ = 23892480.

The previous prime is 76440227. The next prime is 76440229. The reversal of 76440228 is 82204467.

It is an interprime number because it is at equal distance from previous prime (76440227) and next prime (76440229).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (76440227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74358 + ... + 75378.

It is an arithmetic number, because the mean of its divisors is an integer number (3949008).

Almost surely, 2^76440228 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 76440228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94776192).

76440228 is an abundant number, since it is smaller than the sum of its proper divisors (113112156).

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

76440228 is a wasteful number, since it uses less digits than its factorization.

76440228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 76440228 is about 8743.0102367548. The cubic root of 76440228 is about 424.3986475587.

The spelling of 76440228 in words is "seventy-six million, four hundred forty thousand, two hundred twenty-eight".