71565468 has 48 divisors (see below), whose sum is σ = 182138880. Its totient is φ = 21737664.

The previous prime is 71565449. The next prime is 71565479. The reversal of 71565468 is 86456517.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9421 + ... + 15227.

It is an arithmetic number, because the mean of its divisors is an integer number (3794560).

Almost surely, 2^71565468 is an apocalyptic number.

71565468 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71565468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91069440).

71565468 is an abundant number, since it is smaller than the sum of its proper divisors (110573412).

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

71565468 is a wasteful number, since it uses less digits than its factorization.

71565468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906 (or 5904 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 71565468 is about 8459.6375808896. The cubic root of 71565468 is about 415.1781651416.

The spelling of 71565468 in words is "seventy-one million, five hundred sixty-five thousand, four hundred sixty-eight".