71219450 has 48 divisors (see below), whose sum is σ = 137529144. Its totient is φ = 27417600.

The previous prime is 71219417. The next prime is 71219471. The reversal of 71219450 is 5491217.

It can be written as a sum of positive squares in 12 ways, for example, as 23512801 + 47706649 = 4849^2 + 6907^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253310 + ... + 253590.

Almost surely, 2^71219450 is an apocalyptic number.

71219450 is a deficient number, since it is larger than the sum of its proper divisors (66309694).

71219450 is a wasteful number, since it uses less digits than its factorization.

71219450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 71219450 is about 8439.1616882247. The cubic root of 71219450 is about 414.5079570268.

The spelling of 71219450 in words is "seventy-one million, two hundred nineteen thousand, four hundred fifty".