449674380 has 144 divisors (see below), whose sum is σ = 1454229504. Its totient is φ = 112210560.

The previous prime is 449674373. The next prime is 449674411. The reversal of 449674380 is 83476944.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193425 + ... + 195735.

It is an arithmetic number, because the mean of its divisors is an integer number (10098816).

Almost surely, 2^449674380 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 449674380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727114752).

449674380 is an abundant number, since it is smaller than the sum of its proper divisors (1004555124).

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

449674380 is a wasteful number, since it uses less digits than its factorization.

449674380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 449674380 is about 21205.5271096948. The cubic root of 449674380 is about 766.1245539586.

It can be divided in two parts, 449674 and 380, that added together give a palindrome (450054).

The spelling of 449674380 in words is "four hundred forty-nine million, six hundred seventy-four thousand, three hundred eighty".