49081928 has 64 divisors (see below), whose sum is σ = 110976000. Its totient is φ = 20321280.

The previous prime is 49081927. The next prime is 49081939. The reversal of 49081928 is 82918094.

It is not an unprimeable number, because it can be changed into a prime (49081927) 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, 84776 + ... + 85352.

It is an arithmetic number, because the mean of its divisors is an integer number (1734000).

Almost surely, 2^49081928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49081928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55488000).

49081928 is an abundant number, since it is smaller than the sum of its proper divisors (61894072).

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

49081928 is a wasteful number, since it uses less digits than its factorization.

49081928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 49081928 is about 7005.8495559068. The cubic root of 49081928 is about 366.1344027472.

The spelling of 49081928 in words is "forty-nine million, eighty-one thousand, nine hundred twenty-eight".