71880448 has 36 divisors (see below), whose sum is σ = 145863928. Its totient is φ = 35343360.

The previous prime is 71880443. The next prime is 71880461. The reversal of 71880448 is 84408817.

It is a self number, because there is not a number n which added to its sum of digits gives 71880448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71880443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13315 + ... + 17917.

Almost surely, 2^71880448 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 71880448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72931964).

71880448 is an abundant number, since it is smaller than the sum of its proper divisors (73983480).

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

71880448 is an equidigital number, since it uses as much as digits as its factorization.

71880448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680 (or 4666 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 71880448 is about 8478.2337783291. The cubic root of 71880448 is about 415.7863794742.

The spelling of 71880448 in words is "seventy-one million, eight hundred eighty thousand, four hundred forty-eight".