449037644 has 12 divisors (see below), whose sum is σ = 857253768. Its totient is φ = 204108000.

The previous prime is 449037637. The next prime is 449037683. The reversal of 449037644 is 446730944.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5102657 + ... + 5102744.

It is an arithmetic number, because the mean of its divisors is an integer number (71437814).

Almost surely, 2^449037644 is an apocalyptic number.

449037644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

449037644 is a deficient number, since it is larger than the sum of its proper divisors (408216124).

449037644 is a wasteful number, since it uses less digits than its factorization.

449037644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205416 (or 10205414 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 449037644 is about 21190.5083468991. The cubic root of 449037644 is about 765.7627740155.

The spelling of 449037644 in words is "four hundred forty-nine million, thirty-seven thousand, six hundred forty-four".