2005031448 has 128 divisors (see below), whose sum is σ = 6469824000. Its totient is φ = 563448960.

The previous prime is 2005031437. The next prime is 2005031461. The reversal of 2005031448 is 8441305002.

It is a super-2 number, since 2×2005031448² = 8040302214937953408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 81363 + ... + 103101.

It is an arithmetic number, because the mean of its divisors is an integer number (50545500).

Almost surely, 2^2005031448 is an apocalyptic number.

2005031448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2005031448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3234912000).

2005031448 is an abundant number, since it is smaller than the sum of its proper divisors (4464792552).

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

2005031448 is a wasteful number, since it uses less digits than its factorization.

2005031448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21822 (or 21812 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2005031448 is about 44777.5775137512. The cubic root of 2005031448 is about 1260.9767030196.

The spelling of 2005031448 in words is "two billion, five million, thirty-one thousand, four hundred forty-eight".