71366544 has 60 divisors (see below), whose sum is σ = 211483116. Its totient is φ = 22388736.

The previous prime is 71366521. The next prime is 71366549. The reversal of 71366544 is 44566317.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22924944 + 48441600 = 4788^2 + 6960^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 71366499 and 71366508.

It is not an unprimeable number, because it can be changed into a prime (71366549) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12129 + ... + 17024.

Almost surely, 2^71366544 is an apocalyptic number.

It is an amenable number.

71366544 is an abundant number, since it is smaller than the sum of its proper divisors (140116572).

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

71366544 is a wasteful number, since it uses less digits than its factorization.

71366544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29184 (or 29175 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 71366544 is about 8447.8721581236. The cubic root of 71366544 is about 414.7931305543.

The spelling of 71366544 in words is "seventy-one million, three hundred sixty-six thousand, five hundred forty-four".