61880382 has 32 divisors (see below), whose sum is σ = 138742560. Its totient is φ = 20442240.

The previous prime is 61880381. The next prime is 61880383. The reversal of 61880382 is 28308816.

61880382 is a `hidden beast` number, since 618 + 8 + 0 + 38 + 2 = 666.

61880382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61880381) and next prime (61880383).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61880381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (4335705).

Almost surely, 2^61880382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61880382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69371280).

61880382 is an abundant number, since it is smaller than the sum of its proper divisors (76862178).

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

61880382 is a wasteful number, since it uses less digits than its factorization.

61880382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10265 (or 10259 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 61880382 is about 7866.4084562143. The cubic root of 61880382 is about 395.5344621105.

The spelling of 61880382 in words is "sixty-one million, eight hundred eighty thousand, three hundred eighty-two".