49440000 has 180 divisors, whose sum is σ = 166021856. Its totient is φ = 13056000.

The previous prime is 49439993. The next prime is 49440007. The reversal of 49440000 is 4494.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49439993) and next prime (49440007).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49440007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 479949 + ... + 480051.

Almost surely, 2^49440000 is an apocalyptic number.

49440000 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 49440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83010928).

49440000 is an abundant number, since it is smaller than the sum of its proper divisors (116581856).

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

49440000 is an equidigital number, since it uses as much as digits as its factorization.

49440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 49440000 is about 7031.3583324988. The cubic root of 49440000 is about 367.0226111934.

Adding to 49440000 its reverse (4494), we get a palindrome (49444494).

The spelling of 49440000 in words is "forty-nine million, four hundred forty thousand".