449701918 has 24 divisors (see below), whose sum is σ = 754299000. Its totient is φ = 200481408.

The previous prime is 449701913. The next prime is 449701951. The reversal of 449701918 is 819107944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449701913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9493 + ... + 31456.

It is an arithmetic number, because the mean of its divisors is an integer number (31429125).

Almost surely, 2^449701918 is an apocalyptic number.

449701918 is a deficient number, since it is larger than the sum of its proper divisors (304597082).

449701918 is a wasteful number, since it uses less digits than its factorization.

449701918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41004 (or 40987 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 449701918 is about 21206.1764116024. The cubic root of 449701918 is about 766.1401927617.

The spelling of 449701918 in words is "four hundred forty-nine million, seven hundred one thousand, nine hundred eighteen".