49940256 has 96 divisors (see below), whose sum is σ = 137507328. Its totient is φ = 15851520.

The previous prime is 49940239. The next prime is 49940279. The reversal of 49940256 is 65204994.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288586 + ... + 288758.

It is an arithmetic number, because the mean of its divisors is an integer number (1432368).

Almost surely, 2^49940256 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 49940256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68753664).

49940256 is an abundant number, since it is smaller than the sum of its proper divisors (87567072).

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

49940256 is a wasteful number, since it uses less digits than its factorization.

49940256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 49940256 is about 7066.8420104032. The cubic root of 49940256 is about 368.2563588641.

It can be divided in two parts, 499 and 40256, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 49940256 in words is "forty-nine million, nine hundred forty thousand, two hundred fifty-six".