71922432 has 72 divisors (see below), whose sum is σ = 194261760. Its totient is φ = 23618560.

The previous prime is 71922373. The next prime is 71922439. The reversal of 71922432 is 23422917.

It is a self number, because there is not a number n which added to its sum of digits gives 71922432.

It is not an unprimeable number, because it can be changed into a prime (71922439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53869 + ... + 55187.

It is an arithmetic number, because the mean of its divisors is an integer number (2698080).

Almost surely, 2^71922432 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 71922432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97130880).

71922432 is an abundant number, since it is smaller than the sum of its proper divisors (122339328).

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

71922432 is a wasteful number, since it uses less digits than its factorization.

71922432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409 (or 1395 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 71922432 is about 8480.7094042892. The cubic root of 71922432 is about 415.8673146858.

The spelling of 71922432 in words is "seventy-one million, nine hundred twenty-two thousand, four hundred thirty-two".