49138323 has 16 divisors (see below), whose sum is σ = 70780416. Its totient is φ = 30143520.

The previous prime is 49138321. The next prime is 49138333. The reversal of 49138323 is 32383194.

It is a happy number.

It is not a de Polignac number, because 49138323 - 2¹ = 49138321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49138321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11718 + ... + 15348.

It is an arithmetic number, because the mean of its divisors is an integer number (4423776).

Almost surely, 2^49138323 is an apocalyptic number.

49138323 is a deficient number, since it is larger than the sum of its proper divisors (21642093).

49138323 is a wasteful number, since it uses less digits than its factorization.

49138323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994.

The product of its digits is 15552, while the sum is 33.

The square root of 49138323 is about 7009.8732513506. The cubic root of 49138323 is about 366.2745782137.

The spelling of 49138323 in words is "forty-nine million, one hundred thirty-eight thousand, three hundred twenty-three".