71252736 has 108 divisors (see below), whose sum is σ = 200921112. Its totient is φ = 22413312.

The previous prime is 71252693. The next prime is 71252747. The reversal of 71252736 is 63725217.

It is a junction number, because it is equal to n+sod(n) for n = 71252697 and 71252706.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277120 + ... + 277376.

Almost surely, 2^71252736 is an apocalyptic number.

71252736 is a gapful number since it is divisible by the number (76) 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 71252736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100460556).

71252736 is an abundant number, since it is smaller than the sum of its proper divisors (129668376).

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

71252736 is a wasteful number, since it uses less digits than its factorization.

71252736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 281 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 71252736 is about 8441.1335731642. The cubic root of 71252736 is about 414.5725234849.

The spelling of 71252736 in words is "seventy-one million, two hundred fifty-two thousand, seven hundred thirty-six".