49866880 has 64 divisors (see below), whose sum is σ = 136255680. Its totient is φ = 17095680.

The previous prime is 49866877. The next prime is 49866881. The reversal of 49866880 is 8866894.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (49866881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086 + ... + 10045.

It is an arithmetic number, because the mean of its divisors is an integer number (2128995).

Almost surely, 2^49866880 is an apocalyptic number.

49866880 is a gapful number since it is divisible by the number (40) 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 49866880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68127840).

49866880 is an abundant number, since it is smaller than the sum of its proper divisors (86388800).

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

49866880 is a wasteful number, since it uses less digits than its factorization.

49866880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11157 (or 11145 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 49866880 is about 7061.6485327436. The cubic root of 49866880 is about 368.0759137655.

The spelling of 49866880 in words is "forty-nine million, eight hundred sixty-six thousand, eight hundred eighty".