71274480 has 80 divisors (see below), whose sum is σ = 222735744. Its totient is φ = 18853120.

The previous prime is 71274479. The next prime is 71274503. The reversal of 71274480 is 8447217.

It is a tau number, because it is divible by the number of its divisors (80).

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, 30307 + ... + 32573.

Almost surely, 2^71274480 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 71274480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111367872).

71274480 is an abundant number, since it is smaller than the sum of its proper divisors (151461264).

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

71274480 is a wasteful number, since it uses less digits than its factorization.

71274480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414 (or 2408 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 71274480 is about 8442.4214535878. The cubic root of 71274480 is about 414.6146905120.

The spelling of 71274480 in words is "seventy-one million, two hundred seventy-four thousand, four hundred eighty".