49438720 has 112 divisors (see below), whose sum is σ = 127394208. Its totient is φ = 18350080.

The previous prime is 49438679. The next prime is 49438721. The reversal of 49438720 is 2783494.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 49438720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49438721) 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, 696285 + ... + 696355.

Almost surely, 2^49438720 is an apocalyptic number.

49438720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49438720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63697104).

49438720 is an abundant number, since it is smaller than the sum of its proper divisors (77955488).

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

49438720 is an equidigital number, since it uses as much as digits as its factorization.

49438720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 49438720 is about 7031.2673110898. The cubic root of 49438720 is about 367.0194437649.

The spelling of 49438720 in words is "forty-nine million, four hundred thirty-eight thousand, seven hundred twenty".