76447480 has 64 divisors (see below), whose sum is σ = 181116000. Its totient is φ = 28998144.

The previous prime is 76447463. The next prime is 76447531. The reversal of 76447480 is 8474467.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67882 + ... + 68998.

Almost surely, 2^76447480 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 76447480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90558000).

76447480 is an abundant number, since it is smaller than the sum of its proper divisors (104668520).

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

76447480 is a wasteful number, since it uses less digits than its factorization.

76447480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 76447480 is about 8743.4249582186. The cubic root of 76447480 is about 424.4120682481.

The spelling of 76447480 in words is "seventy-six million, four hundred forty-seven thousand, four hundred eighty".