449825940 has 96 divisors (see below), whose sum is σ = 1420460160. Its totient is φ = 118153728.

The previous prime is 449825891. The next prime is 449825941. The reversal of 449825940 is 49528944.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449825941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29964 + ... + 42396.

It is an arithmetic number, because the mean of its divisors is an integer number (14796460).

Almost surely, 2^449825940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449825940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710230080).

449825940 is an abundant number, since it is smaller than the sum of its proper divisors (970634220).

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

449825940 is a wasteful number, since it uses less digits than its factorization.

449825940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12518 (or 12510 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 449825940 is about 21209.1004052506. The cubic root of 449825940 is about 766.2106168224.

The spelling of 449825940 in words is "four hundred forty-nine million, eight hundred twenty-five thousand, nine hundred forty".