71075232 has 120 divisors (see below), whose sum is σ = 221463396. Its totient is φ = 22284288.

The previous prime is 71075203. The next prime is 71075269. The reversal of 71075232 is 23257017.

It can be written as a sum of positive squares in 2 ways, for example, as 67963536 + 3111696 = 8244^2 + 1764^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 71075196 and 71075205.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43258 + ... + 44870.

Almost surely, 2^71075232 is an apocalyptic number.

71075232 is a gapful number since it is divisible by the number (72) 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 71075232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110731698).

71075232 is an abundant number, since it is smaller than the sum of its proper divisors (150388164).

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

71075232 is a wasteful number, since it uses less digits than its factorization.

71075232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 71075232 is about 8430.6127891156. The cubic root of 71075232 is about 414.2279777759.

The spelling of 71075232 in words is "seventy-one million, seventy-five thousand, two hundred thirty-two".