49981330 has 32 divisors (see below), whose sum is σ = 104363136. Its totient is φ = 16879104.

The previous prime is 49981307. The next prime is 49981357. The reversal of 49981330 is 3318994.

It is a self number, because there is not a number n which added to its sum of digits gives 49981330.

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, 639 + ... + 10018.

It is an arithmetic number, because the mean of its divisors is an integer number (3261348).

Almost surely, 2^49981330 is an apocalyptic number.

49981330 is an abundant number, since it is smaller than the sum of its proper divisors (54381806).

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

49981330 is a wasteful number, since it uses less digits than its factorization.

49981330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 49981330 is about 7069.7475202443. The cubic root of 49981330 is about 368.3572902435.

It can be divided in two parts, 4998 and 1330, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 49981330 in words is "forty-nine million, nine hundred eighty-one thousand, three hundred thirty".