61041080 has 64 divisors (see below), whose sum is σ = 146741760. Its totient is φ = 22796928.

The previous prime is 61041049. The next prime is 61041089. The reversal of 61041080 is 8014016.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61041089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38789 + ... + 40331.

It is an arithmetic number, because the mean of its divisors is an integer number (2292840).

Almost surely, 2^61041080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61041080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73370880).

61041080 is an abundant number, since it is smaller than the sum of its proper divisors (85700680).

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

61041080 is a wasteful number, since it uses less digits than its factorization.

61041080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 61041080 is about 7812.8791108016. The cubic root of 61041080 is about 393.7380653139.

Adding to 61041080 its reverse (8014016), we get a palindrome (69055096).

The spelling of 61041080 in words is "sixty-one million, forty-one thousand, eighty".