449673420 has 96 divisors (see below), whose sum is σ = 1488614400. Its totient is φ = 99235584.

The previous prime is 449673379. The next prime is 449673461. The reversal of 449673420 is 24376944.

It is an interprime number because it is at equal distance from previous prime (449673379) and next prime (449673461).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6280 + ... + 30639.

It is an arithmetic number, because the mean of its divisors is an integer number (15506400).

Almost surely, 2^449673420 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 449673420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744307200).

449673420 is an abundant number, since it is smaller than the sum of its proper divisors (1038940980).

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

449673420 is a wasteful number, since it uses less digits than its factorization.

449673420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36967 (or 36965 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 449673420 is about 21205.5044740747. The cubic root of 449673420 is about 766.1240087640.

The spelling of 449673420 in words is "four hundred forty-nine million, six hundred seventy-three thousand, four hundred twenty".