61224160 has 96 divisors (see below), whose sum is σ = 153280512. Its totient is φ = 23063040.

The previous prime is 61224143. The next prime is 61224161. The reversal of 61224160 is 6142216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61224161) 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, 467295 + ... + 467425.

It is an arithmetic number, because the mean of its divisors is an integer number (1596672).

Almost surely, 2^61224160 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 61224160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76640256).

61224160 is an abundant number, since it is smaller than the sum of its proper divisors (92056352).

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

61224160 is a wasteful number, since it uses less digits than its factorization.

61224160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 61224160 is about 7824.5868900537. The cubic root of 61224160 is about 394.1313175101.

Adding to 61224160 its reverse (6142216), we get a palindrome (67366376).

The spelling of 61224160 in words is "sixty-one million, two hundred twenty-four thousand, one hundred sixty".