71634452 has 24 divisors (see below), whose sum is σ = 127311912. Its totient is φ = 35264000.

The previous prime is 71634391. The next prime is 71634461. The reversal of 71634452 is 25443617.

It can be written as a sum of positive squares in 4 ways, for example, as 1811716 + 69822736 = 1346^2 + 8356^2 .

It is a congruent number.

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, 93752 + ... + 94512.

It is an arithmetic number, because the mean of its divisors is an integer number (5304663).

Almost surely, 2^71634452 is an apocalyptic number.

It is an amenable number.

71634452 is a deficient number, since it is larger than the sum of its proper divisors (55677460).

71634452 is a wasteful number, since it uses less digits than its factorization.

71634452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1097 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 71634452 is about 8463.7138420436. The cubic root of 71634452 is about 415.3115230015.

The spelling of 71634452 in words is "seventy-one million, six hundred thirty-four thousand, four hundred fifty-two".