71456434 has 16 divisors (see below), whose sum is σ = 124574400. Its totient is φ = 30104784.

The previous prime is 71456417. The next prime is 71456449. The reversal of 71456434 is 43465417.

It is a self number, because there is not a number n which added to its sum of digits gives 71456434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42429 + ... + 44080.

It is an arithmetic number, because the mean of its divisors is an integer number (7785900).

Almost surely, 2^71456434 is an apocalyptic number.

71456434 is a deficient number, since it is larger than the sum of its proper divisors (53117966).

71456434 is a wasteful number, since it uses less digits than its factorization.

71456434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86577.

The product of its digits is 40320, while the sum is 34.

The square root of 71456434 is about 8453.1907585243. The cubic root of 71456434 is about 414.9672089057.

The spelling of 71456434 in words is "seventy-one million, four hundred fifty-six thousand, four hundred thirty-four".