61730304 has 40 divisors (see below), whose sum is σ = 164457480. Its totient is φ = 20576256.

The previous prime is 61730303. The next prime is 61730309. The reversal of 61730304 is 40303716.

61730304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61730303) 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 3 ways as a sum of consecutive naturals, for example, 18559 + ... + 21630.

It is an arithmetic number, because the mean of its divisors is an integer number (4111437).

Almost surely, 2^61730304 is an apocalyptic number.

61730304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61730304 is an abundant number, since it is smaller than the sum of its proper divisors (102727176).

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

61730304 is an equidigital number, since it uses as much as digits as its factorization.

61730304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40210 (or 40194 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 61730304 is about 7856.8634963324. The cubic root of 61730304 is about 395.2144410574.

The spelling of 61730304 in words is "sixty-one million, seven hundred thirty thousand, three hundred four".