49278216 has 64 divisors (see below), whose sum is σ = 134971200. Its totient is φ = 14899968.

The previous prime is 49278209. The next prime is 49278227. The reversal of 49278216 is 61287294.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 17070 + ... + 19746.

It is an arithmetic number, because the mean of its divisors is an integer number (2108925).

Almost surely, 2^49278216 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 49278216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67485600).

49278216 is an abundant number, since it is smaller than the sum of its proper divisors (85692984).

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

49278216 is a wasteful number, since it uses less digits than its factorization.

49278216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758 (or 2754 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 49278216 is about 7019.8444427209. The cubic root of 49278216 is about 366.6218340043.

It can be divided in two parts, 49278 and 216, that added together give a palindrome (49494).

The spelling of 49278216 in words is "forty-nine million, two hundred seventy-eight thousand, two hundred sixteen".