3651022368 has 144 divisors (see below), whose sum is σ = 12490470720. Its totient is φ = 988236288.

The previous prime is 3651022363. The next prime is 3651022409. The reversal of 3651022368 is 8632201563.

It is a happy number.

3651022368 is a `hidden beast` number, since 365 + 10 + 223 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (3651022363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9355 + ... + 85962.

It is an arithmetic number, because the mean of its divisors is an integer number (86739380).

Almost surely, 2^3651022368 is an apocalyptic number.

3651022368 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 3651022368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6245235360).

3651022368 is an abundant number, since it is smaller than the sum of its proper divisors (8839448352).

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

3651022368 is a wasteful number, since it uses less digits than its factorization.

3651022368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95359 (or 95348 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 3651022368 is about 60423.6904533313. The cubic root of 3651022368 is about 1539.8254662493.

The spelling of 3651022368 in words is "three billion, six hundred fifty-one million, twenty-two thousand, three hundred sixty-eight".