449489957 has 8 divisors (see below), whose sum is σ = 517748736. Its totient is φ = 382242672.

The previous prime is 449489947. The next prime is 449489959. The reversal of 449489957 is 759984944.

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

It is not a de Polignac number, because 449489957 - 2⁸ = 449489701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449489896 and 449489905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449489959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251918 + ... + 253695.

It is an arithmetic number, because the mean of its divisors is an integer number (64718592).

Almost surely, 2^449489957 is an apocalyptic number.

It is an amenable number.

449489957 is a deficient number, since it is larger than the sum of its proper divisors (68258779).

449489957 is a wasteful number, since it uses less digits than its factorization.

449489957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505747.

The product of its digits is 13063680, while the sum is 59.

The square root of 449489957 is about 21201.1781983927. The cubic root of 449489957 is about 766.0198038587.

The spelling of 449489957 in words is "four hundred forty-nine million, four hundred eighty-nine thousand, nine hundred fifty-seven".