49303728 has 80 divisors (see below), whose sum is σ = 143368800. Its totient is φ = 16422912.

The previous prime is 49303711. The next prime is 49303729. The reversal of 49303728 is 82730394.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49303692 and 49303701.

It is not an unprimeable number, because it can be changed into a prime (49303729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34288 + ... + 35696.

It is an arithmetic number, because the mean of its divisors is an integer number (1792110).

Almost surely, 2^49303728 is an apocalyptic number.

49303728 is a gapful number since it is divisible by the number (48) 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 49303728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71684400).

49303728 is an abundant number, since it is smaller than the sum of its proper divisors (94065072).

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

49303728 is an equidigital number, since it uses as much as digits as its factorization.

49303728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 49303728 is about 7021.6613418763. The cubic root of 49303728 is about 366.6850914525.

The spelling of 49303728 in words is "forty-nine million, three hundred three thousand, seven hundred twenty-eight".