449497785 has 16 divisors (see below), whose sum is σ = 784578240. Its totient is φ = 217938240.

The previous prime is 449497781. The next prime is 449497787. The reversal of 449497785 is 587794944.

It is a happy number.

It is not a de Polignac number, because 449497785 - 2² = 449497781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449497781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1361950 + ... + 1362279.

It is an arithmetic number, because the mean of its divisors is an integer number (49036140).

Almost surely, 2^449497785 is an apocalyptic number.

It is an amenable number.

449497785 is a deficient number, since it is larger than the sum of its proper divisors (335080455).

449497785 is a wasteful number, since it uses less digits than its factorization.

449497785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724248.

The product of its digits is 10160640, while the sum is 57.

The square root of 449497785 is about 21201.3628099705. The cubic root of 449497785 is about 766.0242506531.

The spelling of 449497785 in words is "four hundred forty-nine million, four hundred ninety-seven thousand, seven hundred eighty-five".