3621261200 has 30 divisors (see below), whose sum is σ = 8700080994. Its totient is φ = 1448504320.

The previous prime is 3621261179. The next prime is 3621261269. The reversal of 3621261200 is 21621263.

3621261200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 110224 + 3621150976 = 332^2 + 60176^2 .

It is a super-2 number, since 2×3621261200² = 26227065357250880000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4526177 + ... + 4526976.

Almost surely, 2^3621261200 is an apocalyptic number.

It is an amenable number.

3621261200 is an abundant number, since it is smaller than the sum of its proper divisors (5078819794).

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

3621261200 is a wasteful number, since it uses less digits than its factorization.

3621261200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9053171 (or 9053160 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3621261200 is about 60176.9158398800. The cubic root of 3621261200 is about 1535.6301034388.

Adding to 3621261200 its reverse (21621263), we get a palindrome (3642882463).

The spelling of 3621261200 in words is "three billion, six hundred twenty-one million, two hundred sixty-one thousand, two hundred".