49540000 has 60 divisors (see below), whose sum is σ = 121925034. Its totient is φ = 19808000.

The previous prime is 49539979. The next prime is 49540009. The reversal of 49540000 is 4594.

It can be written as a sum of positive squares in 5 ways, for example, as 595984 + 48944016 = 772^2 + 6996^2 .

It is not an unprimeable number, because it can be changed into a prime (49540009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18762 + ... + 21238.

Almost surely, 2^49540000 is an apocalyptic number.

49540000 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 49540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60962517).

49540000 is an abundant number, since it is smaller than the sum of its proper divisors (72385034).

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

49540000 is an equidigital number, since it uses as much as digits as its factorization.

49540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 49540000 is about 7038.4657419071. The cubic root of 49540000 is about 367.2698977601.

Adding to 49540000 its reverse (4594), we get a palindrome (49544594).

The spelling of 49540000 in words is "forty-nine million, five hundred forty thousand".