449536788 has 18 divisors (see below), whose sum is σ = 1136329194. Its totient is φ = 149845584.

The previous prime is 449536783. The next prime is 449536793. The reversal of 449536788 is 887635944.

It is an interprime number because it is at equal distance from previous prime (449536783) and next prime (449536793).

It can be written as a sum of positive squares in only one way, i.e., 397523844 + 52012944 = 19938^2 + 7212^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449536783) 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, 6243531 + ... + 6243602.

Almost surely, 2^449536788 is an apocalyptic number.

It is an amenable number.

449536788 is an abundant number, since it is smaller than the sum of its proper divisors (686792406).

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

449536788 is a wasteful number, since it uses less digits than its factorization.

449536788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487143 (or 12487138 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 449536788 is about 21202.2826129641. The cubic root of 449536788 is about 766.0464060308.

The spelling of 449536788 in words is "four hundred forty-nine million, five hundred thirty-six thousand, seven hundred eighty-eight".