71205434 has 8 divisors (see below), whose sum is σ = 106843968. Its totient is φ = 35590780.

The previous prime is 71205371. The next prime is 71205457. The reversal of 71205434 is 43450217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×71205434² = 10140427662256712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8549 + ... + 14679.

It is an arithmetic number, because the mean of its divisors is an integer number (13355496).

Almost surely, 2^71205434 is an apocalyptic number.

71205434 is a deficient number, since it is larger than the sum of its proper divisors (35638534).

71205434 is a wasteful number, since it uses less digits than its factorization.

71205434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11940.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 71205434 is about 8438.3312331290. The cubic root of 71205434 is about 414.4807634971.

The spelling of 71205434 in words is "seventy-one million, two hundred five thousand, four hundred thirty-four".