61203680 has 48 divisors (see below), whose sum is σ = 145469520. Its totient is φ = 24333312.

The previous prime is 61203673. The next prime is 61203683. The reversal of 61203680 is 8630216.

61203680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61203683) 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 7 ways as a sum of consecutive naturals, for example, 27572 + ... + 29708.

It is an arithmetic number, because the mean of its divisors is an integer number (3030615).

Almost surely, 2^61203680 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 61203680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72734760).

61203680 is an abundant number, since it is smaller than the sum of its proper divisors (84265840).

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

61203680 is a wasteful number, since it uses less digits than its factorization.

61203680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331 (or 2323 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 61203680 is about 7823.2780853041. The cubic root of 61203680 is about 394.0873658545.

Adding to 61203680 its reverse (8630216), we get a palindrome (69833896).

The spelling of 61203680 in words is "sixty-one million, two hundred three thousand, six hundred eighty".