61044480 has 216 divisors, whose sum is σ = 241698912. Its totient is φ = 13934592.

The previous prime is 61044443. The next prime is 61044481. The reversal of 61044480 is 8444016.

61044480 is a `hidden beast` number, since 610 + 4 + 4 + 48 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61044481) 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, 80262 + ... + 81018.

Almost surely, 2^61044480 is an apocalyptic number.

61044480 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 61044480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120849456).

61044480 is an abundant number, since it is smaller than the sum of its proper divisors (180654432).

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

61044480 is a wasteful number, since it uses less digits than its factorization.

61044480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 774 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 61044480 is about 7813.0966972130. The cubic root of 61044480 is about 393.7453756071.

Adding to 61044480 its reverse (8444016), we get a palindrome (69488496).

The spelling of 61044480 in words is "sixty-one million, forty-four thousand, four hundred eighty".