61304630 has 32 divisors (see below), whose sum is σ = 112510944. Its totient is φ = 24046336.

The previous prime is 61304611. The next prime is 61304651. The reversal of 61304630 is 3640316.

It is a junction number, because it is equal to n+sod(n) for n = 61304596 and 61304605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193232 + ... + 193548.

It is an arithmetic number, because the mean of its divisors is an integer number (3515967).

Almost surely, 2^61304630 is an apocalyptic number.

61304630 is a deficient number, since it is larger than the sum of its proper divisors (51206314).

61304630 is a wasteful number, since it uses less digits than its factorization.

61304630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 61304630 is about 7829.7273260312. The cubic root of 61304630 is about 394.3039174666.

Adding to 61304630 its reverse (3640316), we get a palindrome (64944946).

The spelling of 61304630 in words is "sixty-one million, three hundred four thousand, six hundred thirty".