61042230 has 96 divisors (see below), whose sum is σ = 170299584. Its totient is φ = 15130368.

The previous prime is 61042183. The next prime is 61042259. The reversal of 61042230 is 3224016.

It is a happy number.

61042230 is a `hidden beast` number, since 610 + 4 + 22 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 76192 + ... + 76988.

It is an arithmetic number, because the mean of its divisors is an integer number (1773954).

Almost surely, 2^61042230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61042230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85149792).

61042230 is an abundant number, since it is smaller than the sum of its proper divisors (109257354).

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

61042230 is a wasteful number, since it uses less digits than its factorization.

61042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 61042230 is about 7812.9527068836. The cubic root of 61042230 is about 393.7405379434.

Adding to 61042230 its reverse (3224016), we get a palindrome (64266246).

The spelling of 61042230 in words is "sixty-one million, forty-two thousand, two hundred thirty".