61333230 has 64 divisors (see below), whose sum is σ = 170403840. Its totient is φ = 13837824.

The previous prime is 61333219. The next prime is 61333247. The reversal of 61333230 is 3233316.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 61333197 and 61333206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14742 + ... + 18438.

It is an arithmetic number, because the mean of its divisors is an integer number (2662560).

Almost surely, 2^61333230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61333230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85201920).

61333230 is an abundant number, since it is smaller than the sum of its proper divisors (109070610).

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

61333230 is a wasteful number, since it uses less digits than its factorization.

61333230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 61333230 is about 7831.5534857396. The cubic root of 61333230 is about 394.3652251732.

Adding to 61333230 its reverse (3233316), we get a palindrome (64566546).

The spelling of 61333230 in words is "sixty-one million, three hundred thirty-three thousand, two hundred thirty".