49724244 has 18 divisors (see below), whose sum is σ = 125691930. Its totient is φ = 16574736.

The previous prime is 49724243. The next prime is 49724281. The reversal of 49724244 is 44242794.

It can be written as a sum of positive squares in only one way, i.e., 45968400 + 3755844 = 6780^2 + 1938^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1381229 = 49724244 / (4 + 9 + 7 + 2 + 4 + 2 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 49724199 and 49724208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49724243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 690579 + ... + 690650.

It is an arithmetic number, because the mean of its divisors is an integer number (6982885).

Almost surely, 2^49724244 is an apocalyptic number.

It is an amenable number.

49724244 is an abundant number, since it is smaller than the sum of its proper divisors (75967686).

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

49724244 is a wasteful number, since it uses less digits than its factorization.

49724244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381239 (or 1381234 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 49724244 is about 7051.5419590328. The cubic root of 49724244 is about 367.7246384471.

It can be divided in two parts, 4972 and 4244, that added together give a square (9216 = 96²).

The spelling of 49724244 in words is "forty-nine million, seven hundred twenty-four thousand, two hundred forty-four".