449979226988 has 24 divisors (see below), whose sum is σ = 794142468000. Its totient is φ = 223086689408.

The previous prime is 449979226987. The next prime is 449979226999. The reversal of 449979226988 is 889622979944.

It is a super-3 number, since 3×449979226988³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (449979226987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324320 + ... + 1002567.

It is an arithmetic number, because the mean of its divisors is an integer number (33089269500).

Almost surely, 2^449979226988 is an apocalyptic number.

It is an amenable number.

449979226988 is a deficient number, since it is larger than the sum of its proper divisors (344163241012).

449979226988 is a wasteful number, since it uses less digits than its factorization.

449979226988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327609 (or 1327607 counting only the distinct ones).

The product of its digits is 1128701952, while the sum is 77.

The spelling of 449979226988 in words is "four hundred forty-nine billion, nine hundred seventy-nine million, two hundred twenty-six thousand, nine hundred eighty-eight".