3654443520 has 960 divisors, whose sum is σ = 16457696640. Its totient is φ = 761757696.

The previous prime is 3654443519. The next prime is 3654443567. The reversal of 3654443520 is 253444563.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44029399 + ... + 44029481.

It is an arithmetic number, because the mean of its divisors is an integer number (17143434).

Almost surely, 2^3654443520 is an apocalyptic number.

3654443520 is a gapful number since it is divisible by the number (30) 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 3654443520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8228848320).

3654443520 is an abundant number, since it is smaller than the sum of its proper divisors (12803253120).

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

3654443520 is a wasteful number, since it uses less digits than its factorization.

3654443520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

The square root of 3654443520 is about 60451.9935155161. The cubic root of 3654443520 is about 1540.3062751721.

The spelling of 3654443520 in words is "three billion, six hundred fifty-four million, four hundred forty-three thousand, five hundred twenty".