49408866 has 80 divisors (see below), whose sum is σ = 123492600. Its totient is φ = 14660352.

The previous prime is 49408859. The next prime is 49408867. The reversal of 49408866 is 66880494.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43283241 + 6125625 = 6579^2 + 2475^2 .

It is not an unprimeable number, because it can be changed into a prime (49408867) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 60670 + ... + 61478.

Almost surely, 2^49408866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49408866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61746300).

49408866 is an abundant number, since it is smaller than the sum of its proper divisors (74083734).

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

49408866 is a wasteful number, since it uses less digits than its factorization.

49408866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 49408866 is about 7029.1440446188. The cubic root of 49408866 is about 366.9455529312.

The spelling of 49408866 in words is "forty-nine million, four hundred eight thousand, eight hundred sixty-six".