49099409 has 4 divisors (see below), whose sum is σ = 49832304. Its totient is φ = 48366516.

The previous prime is 49099403. The next prime is 49099429. The reversal of 49099409 is 90499094.

It is a happy number.

49099409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49099409 - 2⁸ = 49099153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49099409.

It is not an unprimeable number, because it can be changed into a prime (49099403) 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 3 ways as a sum of consecutive naturals, for example, 366347 + ... + 366480.

It is an arithmetic number, because the mean of its divisors is an integer number (12458076).

Almost surely, 2^49099409 is an apocalyptic number.

It is an amenable number.

49099409 is a deficient number, since it is larger than the sum of its proper divisors (732895).

49099409 is an equidigital number, since it uses as much as digits as its factorization.

49099409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732894.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 49099409 is about 7007.0970451393. The cubic root of 49099409 is about 366.1778650156.

It can be divided in two parts, 490 and 99409, that added together give a palindrome (99899).

The spelling of 49099409 in words is "forty-nine million, ninety-nine thousand, four hundred nine".