61335630 has 96 divisors (see below), whose sum is σ = 169513344. Its totient is φ = 15948576.

The previous prime is 61335623. The next prime is 61335647. The reversal of 61335630 is 3653316.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 61335594 and 61335603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104197 + ... + 104783.

It is an arithmetic number, because the mean of its divisors is an integer number (1765764).

Almost surely, 2^61335630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61335630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84756672).

61335630 is an abundant number, since it is smaller than the sum of its proper divisors (108177714).

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

61335630 is a wasteful number, since it uses less digits than its factorization.

61335630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 61335630 is about 7831.7067105453. The cubic root of 61335630 is about 394.3703690091.

Adding to 61335630 its reverse (3653316), we get a palindrome (64988946).

The spelling of 61335630 in words is "sixty-one million, three hundred thirty-five thousand, six hundred thirty".