49983966 has 80 divisors (see below), whose sum is σ = 119180160. Its totient is φ = 15629760.

The previous prime is 49983959. The next prime is 49983971. The reversal of 49983966 is 66938994.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 185680 + ... + 185948.

It is an arithmetic number, because the mean of its divisors is an integer number (1489752).

Almost surely, 2^49983966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49983966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59590080).

49983966 is an abundant number, since it is smaller than the sum of its proper divisors (69196194).

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

49983966 is a wasteful number, since it uses less digits than its factorization.

49983966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 342 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 49983966 is about 7069.9339459432. The cubic root of 49983966 is about 368.3637658131.

The spelling of 49983966 in words is "forty-nine million, nine hundred eighty-three thousand, nine hundred sixty-six".