71453328 has 40 divisors (see below), whose sum is σ = 188077248. Its totient is φ = 23367552.

The previous prime is 71453297. The next prime is 71453339. The reversal of 71453328 is 82335417.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11500 + ... + 16587.

Almost surely, 2^71453328 is an apocalyptic number.

It is an amenable number.

71453328 is an abundant number, since it is smaller than the sum of its proper divisors (116623920).

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

71453328 is a wasteful number, since it uses less digits than its factorization.

71453328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28151 (or 28145 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 71453328 is about 8453.0070389182. The cubic root of 71453328 is about 414.9611963525.

The spelling of 71453328 in words is "seventy-one million, four hundred fifty-three thousand, three hundred twenty-eight".