4381448490 has 64 divisors (see below), whose sum is σ = 11706664320. Its totient is φ = 1166106240.

The previous prime is 4381448483. The next prime is 4381448497. The reversal of 4381448490 is 948441834.

4381448490 is a `hidden beast` number, since 4 + 3 + 81 + 4 + 484 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (4381448483) and next prime (4381448497).

It is a super-3 number, since 3×4381448490³ (a number of 30 digits) contains 333 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4381448497) 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, 125097 + ... + 156243.

It is an arithmetic number, because the mean of its divisors is an integer number (182916630).

Almost surely, 2^4381448490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4381448490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5853332160).

4381448490 is an abundant number, since it is smaller than the sum of its proper divisors (7325215830).

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

4381448490 is a wasteful number, since it uses less digits than its factorization.

4381448490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31684 (or 31678 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 4381448490 is about 66192.5108301536. The cubic root of 4381448490 is about 1636.3363201753.

The spelling of 4381448490 in words is "four billion, three hundred eighty-one million, four hundred forty-eight thousand, four hundred ninety".