61033860 has 72 divisors (see below), whose sum is σ = 186129216. Its totient is φ = 16188480.

The previous prime is 61033849. The next prime is 61033867. The reversal of 61033860 is 6833016.

It is not an unprimeable number, because it can be changed into a prime (61033867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37177 + ... + 38783.

It is an arithmetic number, because the mean of its divisors is an integer number (2585128).

Almost surely, 2^61033860 is an apocalyptic number.

61033860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61033860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93064608).

61033860 is an abundant number, since it is smaller than the sum of its proper divisors (125095356).

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

61033860 is a wasteful number, since it uses less digits than its factorization.

61033860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61033860 is about 7812.4170395595. The cubic root of 61033860 is about 393.7225407911.

Adding to 61033860 its reverse (6833016), we get a palindrome (67866876).

The spelling of 61033860 in words is "sixty-one million, thirty-three thousand, eight hundred sixty".