71409952 has 24 divisors (see below), whose sum is σ = 141232896. Its totient is φ = 35541312.

The previous prime is 71409901. The next prime is 71409953. The reversal of 71409952 is 25990417.

It is not an unprimeable number, because it can be changed into a prime (71409953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2133 + ... + 12139.

It is an arithmetic number, because the mean of its divisors is an integer number (5884704).

Almost surely, 2^71409952 is an apocalyptic number.

It is an amenable number.

71409952 is a deficient number, since it is larger than the sum of its proper divisors (69822944).

71409952 is a wasteful number, since it uses less digits than its factorization.

71409952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240 (or 10232 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 71409952 is about 8450.4409352412. The cubic root of 71409952 is about 414.8772114597.

It can be divided in two parts, 71409 and 952, that added together give a square (72361 = 269²).

The spelling of 71409952 in words is "seventy-one million, four hundred nine thousand, nine hundred fifty-two".