3621826560 has 416 divisors, whose sum is σ = 13248188928. Its totient is φ = 836239360.

The previous prime is 3621826543. The next prime is 3621826573. The reversal of 3621826560 is 656281263.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15544204 + ... + 15544436.

It is an arithmetic number, because the mean of its divisors is an integer number (31846608).

Almost surely, 2^3621826560 is an apocalyptic number.

3621826560 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 3621826560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6624094464).

3621826560 is an abundant number, since it is smaller than the sum of its proper divisors (9626362368).

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

3621826560 is a wasteful number, since it uses less digits than its factorization.

3621826560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 3621826560 is about 60181.6131388982. The cubic root of 3621826560 is about 1535.7100147008.

The spelling of 3621826560 in words is "three billion, six hundred twenty-one million, eight hundred twenty-six thousand, five hundred sixty".