71040480 has 96 divisors (see below), whose sum is σ = 255757824. Its totient is φ = 16237056.

The previous prime is 71040469. The next prime is 71040493. The reversal of 71040480 is 8404017.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 71040480.

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, 7212 + ... + 13931.

It is an arithmetic number, because the mean of its divisors is an integer number (2664144).

Almost surely, 2^71040480 is an apocalyptic number.

71040480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71040480 is an abundant number, since it is smaller than the sum of its proper divisors (184717344).

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

71040480 is a wasteful number, since it uses less digits than its factorization.

71040480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21168 (or 21160 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 71040480 is about 8428.5514769740. The cubic root of 71040480 is about 414.1604549690.

Adding to 71040480 its reverse (8404017), we get a palindrome (79444497).

The spelling of 71040480 in words is "seventy-one million, forty thousand, four hundred eighty".