61272432 has 120 divisors (see below), whose sum is σ = 187675488. Its totient is φ = 18547200.

The previous prime is 61272427. The next prime is 61272433. The reversal of 61272432 is 23427216.

61272432 is a `hidden beast` number, since 612 + 7 + 2 + 43 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61272396 and 61272405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61272433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132682 + ... + 133142.

Almost surely, 2^61272432 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 61272432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93837744).

61272432 is an abundant number, since it is smaller than the sum of its proper divisors (126403056).

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

61272432 is a wasteful number, since it uses less digits than its factorization.

61272432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 550 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 61272432 is about 7827.6709179679. The cubic root of 61272432 is about 394.2348741722.

Adding to 61272432 its reverse (23427216), we get a palindrome (84699648).

The spelling of 61272432 in words is "sixty-one million, two hundred seventy-two thousand, four hundred thirty-two".