49216220 has 48 divisors (see below), whose sum is σ = 107563008. Its totient is φ = 18895680.

The previous prime is 49216217. The next prime is 49216243. The reversal of 49216220 is 2261294.

It is a super-2 number, since 2×49216220² = 4844472622176800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49216220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100817 + ... + 101303.

It is an arithmetic number, because the mean of its divisors is an integer number (2240896).

Almost surely, 2^49216220 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 49216220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53781504).

49216220 is an abundant number, since it is smaller than the sum of its proper divisors (58346788).

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

49216220 is a wasteful number, since it uses less digits than its factorization.

49216220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 49216220 is about 7015.4272856327. The cubic root of 49216220 is about 366.4680227978.

The spelling of 49216220 in words is "forty-nine million, two hundred sixteen thousand, two hundred twenty".