49440256 has 40 divisors (see below), whose sum is σ = 100466784. Its totient is φ = 24299520.

The previous prime is 49440253. The next prime is 49440277. The reversal of 49440256 is 65204494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49440253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30441 + ... + 32023.

Almost surely, 2^49440256 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 49440256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50233392).

49440256 is an abundant number, since it is smaller than the sum of its proper divisors (51026528).

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

49440256 is an equidigital number, since it uses as much as digits as its factorization.

49440256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 49440256 is about 7031.3765366392. The cubic root of 49440256 is about 367.0232446725.

The spelling of 49440256 in words is "forty-nine million, four hundred forty thousand, two hundred fifty-six".