71425432 has 64 divisors (see below), whose sum is σ = 155131200. Its totient is φ = 30535680.

The previous prime is 71425331. The next prime is 71425433. The reversal of 71425432 is 23452417.

Its product of digits (6720) is a multiple of the sum of its prime divisors (672).

It is a self number, because there is not a number n which added to its sum of digits gives 71425432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71425433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125244 + ... + 125812.

It is an arithmetic number, because the mean of its divisors is an integer number (2423925).

Almost surely, 2^71425432 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 71425432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77565600).

71425432 is an abundant number, since it is smaller than the sum of its proper divisors (83705768).

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

71425432 is a wasteful number, since it uses less digits than its factorization.

71425432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 672 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 71425432 is about 8451.3568141453. The cubic root of 71425432 is about 414.9071878381.

Adding to 71425432 its reverse (23452417), we get a palindrome (94877849).

It can be divided in two parts, 71 and 425432, that added together give a triangular number (425503 = T₉₂₂).

The spelling of 71425432 in words is "seventy-one million, four hundred twenty-five thousand, four hundred thirty-two".