449188940 has 12 divisors (see below), whose sum is σ = 943296816. Its totient is φ = 179675568.

The previous prime is 449188903. The next prime is 449189003. The reversal of 449188940 is 49881944.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11229704 + ... + 11229743.

It is an arithmetic number, because the mean of its divisors is an integer number (78608068).

Almost surely, 2^449188940 is an apocalyptic number.

It is an amenable number.

449188940 is an abundant number, since it is smaller than the sum of its proper divisors (494107876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449188940 is a wasteful number, since it uses less digits than its factorization.

449188940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22459456 (or 22459454 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 449188940 is about 21194.0779464453. The cubic root of 449188940 is about 765.8487681681.

The spelling of 449188940 in words is "four hundred forty-nine million, one hundred eighty-eight thousand, nine hundred forty".