71434416 has 80 divisors (see below), whose sum is σ = 193860608. Its totient is φ = 22636800.

The previous prime is 71434411. The next prime is 71434421. The reversal of 71434416 is 61443417.

It is an interprime number because it is at equal distance from previous prime (71434411) and next prime (71434421).

It is a super-2 number, since 2×71434416² = 10205751578522112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71434411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90375 + ... + 91161.

Almost surely, 2^71434416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71434416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96930304).

71434416 is an abundant number, since it is smaller than the sum of its proper divisors (122426192).

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

71434416 is a wasteful number, since it uses less digits than its factorization.

71434416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 884 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 71434416 is about 8451.8883097211. Note that the first 3 decimals coincide. The cubic root of 71434416 is about 414.9245829955.

Subtracting from 71434416 its reverse (61443417), we obtain a palindrome (9990999).

The spelling of 71434416 in words is "seventy-one million, four hundred thirty-four thousand, four hundred sixteen".