49712220 has 144 divisors (see below), whose sum is σ = 159344640. Its totient is φ = 12528000.

The previous prime is 49712219. The next prime is 49712263. The reversal of 49712220 is 2221794.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 329145 + ... + 329295.

It is an arithmetic number, because the mean of its divisors is an integer number (1106560).

Almost surely, 2^49712220 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 49712220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79672320).

49712220 is an abundant number, since it is smaller than the sum of its proper divisors (109632420).

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

49712220 is a wasteful number, since it uses less digits than its factorization.

49712220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 49712220 is about 7050.6893280019. The cubic root of 49712220 is about 367.6949957810.

The spelling of 49712220 in words is "forty-nine million, seven hundred twelve thousand, two hundred twenty".