449320464 has 30 divisors (see below), whose sum is σ = 1257473646. Its totient is φ = 149773440.

The previous prime is 449320463. The next prime is 449320477. The reversal of 449320464 is 464023944.

449320464 is a `hidden beast` number, since 449 + 3 + 204 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 300675600 + 148644864 = 17340^2 + 12192^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (449320463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1559997 + ... + 1560284.

Almost surely, 2^449320464 is an apocalyptic number.

It is an amenable number.

449320464 is an abundant number, since it is smaller than the sum of its proper divisors (808153182).

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

449320464 is a wasteful number, since it uses less digits than its factorization.

449320464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120295 (or 3120286 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 449320464 is about 21197.1805672358. The cubic root of 449320464 is about 765.9235085538.

The spelling of 449320464 in words is "four hundred forty-nine million, three hundred twenty thousand, four hundred sixty-four".