449671557 has 8 divisors (see below), whose sum is σ = 610874784. Its totient is φ = 294124688.

The previous prime is 449671531. The next prime is 449671561. The reversal of 449671557 is 755176944.

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

It is a cyclic number.

It is not a de Polignac number, because 449671557 - 2¹² = 449667461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449671577) 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, 1413903 + ... + 1414220.

It is an arithmetic number, because the mean of its divisors is an integer number (76359348).

Almost surely, 2^449671557 is an apocalyptic number.

It is an amenable number.

449671557 is a deficient number, since it is larger than the sum of its proper divisors (161203227).

449671557 is a wasteful number, since it uses less digits than its factorization.

449671557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828179.

The product of its digits is 1058400, while the sum is 48.

The square root of 449671557 is about 21205.4605467554. The cubic root of 449671557 is about 766.1229507436.

The spelling of 449671557 in words is "four hundred forty-nine million, six hundred seventy-one thousand, five hundred fifty-seven".