71810048 has 44 divisors (see below), whose sum is σ = 149840400. Its totient is φ = 34332672.

The previous prime is 71810033. The next prime is 71810069. The reversal of 71810048 is 84001817.

It is a self number, because there is not a number n which added to its sum of digits gives 71810048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22028 + ... + 25076.

Almost surely, 2^71810048 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 71810048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74920200).

71810048 is an abundant number, since it is smaller than the sum of its proper divisors (78030352).

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

71810048 is a wasteful number, since it uses less digits than its factorization.

71810048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 71810048 is about 8474.0809531182. The cubic root of 71810048 is about 415.6505941840.

The spelling of 71810048 in words is "seventy-one million, eight hundred ten thousand, forty-eight".