61196220 has 72 divisors (see below), whose sum is σ = 187160064. Its totient is φ = 16184448.

The previous prime is 61196171. The next prime is 61196221. The reversal of 61196220 is 2269116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61196221) 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, 21522 + ... + 24198.

Almost surely, 2^61196220 is an apocalyptic number.

61196220 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 61196220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93580032).

61196220 is an abundant number, since it is smaller than the sum of its proper divisors (125963844).

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

61196220 is a wasteful number, since it uses less digits than its factorization.

61196220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 61196220 is about 7822.8012885411. The cubic root of 61196220 is about 394.0713536844.

It can be divided in two parts, 61196 and 220, that added together give a palindrome (61416).

The spelling of 61196220 in words is "sixty-one million, one hundred ninety-six thousand, two hundred twenty".