49689224 has 48 divisors (see below), whose sum is σ = 103414500. Its totient is φ = 22249728.

The previous prime is 49689221. The next prime is 49689247. The reversal of 49689224 is 42298694.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 42016324 + 7672900 = 6482^2 + 2770^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (49689221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142202 + ... + 142550.

Almost surely, 2^49689224 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 49689224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51707250).

49689224 is an abundant number, since it is smaller than the sum of its proper divisors (53725276).

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

49689224 is a wasteful number, since it uses less digits than its factorization.

49689224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 401 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 49689224 is about 7049.0583768330. The cubic root of 49689224 is about 367.6382906204.

The spelling of 49689224 in words is "forty-nine million, six hundred eighty-nine thousand, two hundred twenty-four".