49120100 has 18 divisors (see below), whose sum is σ = 106590834. Its totient is φ = 19648000.

The previous prime is 49120081. The next prime is 49120103. The reversal of 49120100 is 102194.

It is a happy number.

49120100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6635776 + 42484324 = 2576^2 + 6518^2 .

It is not an unprimeable number, because it can be changed into a prime (49120103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245501 + ... + 245700.

It is an arithmetic number, because the mean of its divisors is an integer number (5921713).

Almost surely, 2^49120100 is an apocalyptic number.

It is an amenable number.

49120100 is an abundant number, since it is smaller than the sum of its proper divisors (57470734).

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

49120100 is a wasteful number, since it uses less digits than its factorization.

49120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491215 (or 491208 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 49120100 is about 7008.5733212973. The cubic root of 49120100 is about 366.2292948415.

Adding to 49120100 its reverse (102194), we get a palindrome (49222294).

The spelling of 49120100 in words is "forty-nine million, one hundred twenty thousand, one hundred".