449678740 has 48 divisors (see below), whose sum is σ = 1081180800. Its totient is φ = 153896832.

The previous prime is 449678717. The next prime is 449678743. The reversal of 449678740 is 47876944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449678743) 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, 84066 + ... + 89254.

It is an arithmetic number, because the mean of its divisors is an integer number (22524600).

Almost surely, 2^449678740 is an apocalyptic number.

It is an amenable number.

449678740 is an abundant number, since it is smaller than the sum of its proper divisors (631502060).

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

449678740 is a wasteful number, since it uses less digits than its factorization.

449678740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5824 (or 5822 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 449678740 is about 21205.6299128321. The cubic root of 449678740 is about 766.1270300409.

The spelling of 449678740 in words is "four hundred forty-nine million, six hundred seventy-eight thousand, seven hundred forty".