49744864 has 48 divisors (see below), whose sum is σ = 106178688. Its totient is φ = 22804992.

The previous prime is 49744853. The next prime is 49744867. The reversal of 49744864 is 46844794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49744867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81649 + ... + 82255.

It is an arithmetic number, because the mean of its divisors is an integer number (2212056).

Almost surely, 2^49744864 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 49744864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53089344).

49744864 is an abundant number, since it is smaller than the sum of its proper divisors (56433824).

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

49744864 is a wasteful number, since it uses less digits than its factorization.

49744864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 819 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 49744864 is about 7053.0038990490. The cubic root of 49744864 is about 367.7754616376.

The spelling of 49744864 in words is "forty-nine million, seven hundred forty-four thousand, eight hundred sixty-four".