3644617480 has 64 divisors (see below), whose sum is σ = 9434880000. Its totient is φ = 1241182464.

The previous prime is 3644617477. The next prime is 3644617507. The reversal of 3644617480 is 847164463.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1960 + ... + 85399.

It is an arithmetic number, because the mean of its divisors is an integer number (147420000).

Almost surely, 2^3644617480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3644617480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4717440000).

3644617480 is an abundant number, since it is smaller than the sum of its proper divisors (5790262520).

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

3644617480 is a wasteful number, since it uses less digits than its factorization.

3644617480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87526 (or 87522 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 3644617480 is about 60370.6673807736. The cubic root of 3644617480 is about 1538.9245147348.

The spelling of 3644617480 in words is "three billion, six hundred forty-four million, six hundred seventeen thousand, four hundred eighty".