76544028 has 72 divisors (see below), whose sum is σ = 218924160. Its totient is φ = 23191920.

The previous prime is 76543997. The next prime is 76544029. The reversal of 76544028 is 82044567.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 76543983 and 76544001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76544029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7113 + ... + 14271.

Almost surely, 2^76544028 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 76544028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109462080).

76544028 is an abundant number, since it is smaller than the sum of its proper divisors (142380132).

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

76544028 is a wasteful number, since it uses less digits than its factorization.

76544028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189 (or 7175 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 76544028 is about 8748.9443934683. The cubic root of 76544028 is about 424.5906610041.

The spelling of 76544028 in words is "seventy-six million, five hundred forty-four thousand, twenty-eight".