76228578 has 48 divisors (see below), whose sum is σ = 182497536. Its totient is φ = 22872960.

The previous prime is 76228567. The next prime is 76228583. The reversal of 76228578 is 87582267.

76228578 is a `hidden beast` number, since 76 + 2 + 2 + 8 + 578 = 666.

It is a super-4 number, since 4×76228578⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1623 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (3802032).

Almost surely, 2^76228578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76228578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91248768).

76228578 is an abundant number, since it is smaller than the sum of its proper divisors (106268958).

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

76228578 is a wasteful number, since it uses less digits than its factorization.

76228578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10879 (or 10876 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 76228578 is about 8730.8978919696. The cubic root of 76228578 is about 424.0065895796.

The spelling of 76228578 in words is "seventy-six million, two hundred twenty-eight thousand, five hundred seventy-eight".