449749758 has 8 divisors (see below), whose sum is σ = 899499528. Its totient is φ = 149916584.

The previous prime is 449749747. The next prime is 449749789. The reversal of 449749758 is 857947944.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

449749758 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 449749698 and 449749707.

It is a congruent number.

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, 37479141 + ... + 37479152.

It is an arithmetic number, because the mean of its divisors is an integer number (112437441).

Almost surely, 2^449749758 is an apocalyptic number.

449749758 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

449749758 is a wasteful number, since it uses less digits than its factorization.

449749758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74958298.

The product of its digits is 10160640, while the sum is 57.

The square root of 449749758 is about 21207.3043548679. The cubic root of 449749758 is about 766.1673595328.

The spelling of 449749758 in words is "four hundred forty-nine million, seven hundred forty-nine thousand, seven hundred fifty-eight".