449980634 has 8 divisors (see below), whose sum is σ = 675156180. Its totient is φ = 224928576.

The previous prime is 449980631. The next prime is 449980651. The reversal of 449980634 is 436089944.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 445336609 + 4644025 = 21103^2 + 2155^2 .

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

It is a super-3 number, since 3×449980634³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (449980631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21149 + ... + 36704.

Almost surely, 2^449980634 is an apocalyptic number.

449980634 is a deficient number, since it is larger than the sum of its proper divisors (225175546).

449980634 is a wasteful number, since it uses less digits than its factorization.

449980634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61744.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 449980634 is about 21212.7469696878. The cubic root of 449980634 is about 766.2984393851.

The spelling of 449980634 in words is "four hundred forty-nine million, nine hundred eighty thousand, six hundred thirty-four".