71330454 has 24 divisors (see below), whose sum is σ = 166438272. Its totient is φ = 21947760.

The previous prime is 71330423. The next prime is 71330513. The reversal of 71330454 is 45403317.

It is a super-2 number, since 2×71330454² = 10176067335692232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152182 + ... + 152649.

It is an arithmetic number, because the mean of its divisors is an integer number (6934928).

Almost surely, 2^71330454 is an apocalyptic number.

71330454 is an abundant number, since it is smaller than the sum of its proper divisors (95107818).

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

71330454 is a wasteful number, since it uses less digits than its factorization.

71330454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304852 (or 304849 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 71330454 is about 8445.7358471598. The cubic root of 71330454 is about 414.7231985881.

The spelling of 71330454 in words is "seventy-one million, three hundred thirty thousand, four hundred fifty-four".