61432308 has 72 divisors (see below), whose sum is σ = 178196928. Its totient is φ = 17480448.

The previous prime is 61432303. The next prime is 61432361. The reversal of 61432308 is 80323416.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61432303) 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, 108835 + ... + 109397.

Almost surely, 2^61432308 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 61432308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89098464).

61432308 is an abundant number, since it is smaller than the sum of its proper divisors (116764620).

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

61432308 is a wasteful number, since it uses less digits than its factorization.

61432308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 61432308 is about 7837.8764981339. The cubic root of 61432308 is about 394.5774641021.

The spelling of 61432308 in words is "sixty-one million, four hundred thirty-two thousand, three hundred eight".