40449440319 has 16 divisors (see below), whose sum is σ = 54908390400. Its totient is φ = 26479870560.

The previous prime is 40449440267. The next prime is 40449440363. The reversal of 40449440319 is 91304494404.

It is not a de Polignac number, because 40449440319 - 2⁷ = 40449440191 is a prime.

It is a super-2 number, since 2×40449440319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40449445319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74887 + ... + 294120.

It is an arithmetic number, because the mean of its divisors is an integer number (3431774400).

Almost surely, 2^40449440319 is an apocalyptic number.

40449440319 is a deficient number, since it is larger than the sum of its proper divisors (14458950081).

40449440319 is a wasteful number, since it uses less digits than its factorization.

40449440319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369670.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 40449440319 in words is "forty billion, four hundred forty-nine million, four hundred forty thousand, three hundred nineteen".