449238725 has 24 divisors (see below), whose sum is σ = 603997800. Its totient is φ = 329483520.

The previous prime is 449238721. The next prime is 449238761. The reversal of 449238725 is 527832944.

It can be written as a sum of positive squares in 12 ways, for example, as 219958561 + 229280164 = 14831^2 + 15142^2 .

It is not a de Polignac number, because 449238725 - 2² = 449238721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449238721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43787 + ... + 53063.

It is an arithmetic number, because the mean of its divisors is an integer number (25166575).

Almost surely, 2^449238725 is an apocalyptic number.

It is an amenable number.

449238725 is a deficient number, since it is larger than the sum of its proper divisors (154759075).

449238725 is a wasteful number, since it uses less digits than its factorization.

449238725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9449 (or 9444 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 449238725 is about 21195.2524165201. The cubic root of 449238725 is about 765.8770609190.

The spelling of 449238725 in words is "four hundred forty-nine million, two hundred thirty-eight thousand, seven hundred twenty-five".