3651446448 has 360 divisors, whose sum is σ = 11947338000. Its totient is φ = 1037297664.

The previous prime is 3651446441. The next prime is 3651446479. The reversal of 3651446448 is 8446441563.

3651446448 is a `hidden beast` number, since 3 + 65 + 144 + 6 + 448 = 666.

It is a super-2 number, since 2×3651446448² = 26666122325223633408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3651446441) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24506278 + ... + 24506426.

It is an arithmetic number, because the mean of its divisors is an integer number (33187050).

Almost surely, 2^3651446448 is an apocalyptic number.

3651446448 is a gapful number since it is divisible by the number (38) 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 3651446448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5973669000).

3651446448 is an abundant number, since it is smaller than the sum of its proper divisors (8295891552).

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

3651446448 is a wasteful number, since it uses less digits than its factorization.

3651446448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 239 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 3651446448 is about 60427.1995710541. The cubic root of 3651446448 is about 1539.8850827838.

The spelling of 3651446448 in words is "three billion, six hundred fifty-one million, four hundred forty-six thousand, four hundred forty-eight".