71369472 has 144 divisors (see below), whose sum is σ = 205708160. Its totient is φ = 21897216.

The previous prime is 71369449. The next prime is 71369489. The reversal of 71369472 is 27496317.

It is a self number, because there is not a number n which added to its sum of digits gives 71369472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 977628 + ... + 977700.

Almost surely, 2^71369472 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 71369472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102854080).

71369472 is an abundant number, since it is smaller than the sum of its proper divisors (134338688).

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

71369472 is a wasteful number, since it uses less digits than its factorization.

71369472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 164 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 71369472 is about 8448.0454544232. The cubic root of 71369472 is about 414.7988031361.

The spelling of 71369472 in words is "seventy-one million, three hundred sixty-nine thousand, four hundred seventy-two".