3036621220 has 24 divisors (see below), whose sum is σ = 6497225784. Its totient is φ = 1191730176.

The previous prime is 3036621199. The next prime is 3036621229. The reversal of 3036621220 is 221266303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13380964 + 3023240256 = 3658^2 + 54984^2 .

It is not an unprimeable number, because it can be changed into a prime (3036621229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1431309 + ... + 1433428.

It is an arithmetic number, because the mean of its divisors is an integer number (270717741).

Almost surely, 2^3036621220 is an apocalyptic number.

It is an amenable number.

3036621220 is an abundant number, since it is smaller than the sum of its proper divisors (3460604564).

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

3036621220 is a wasteful number, since it uses less digits than its factorization.

3036621220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864799 (or 2864797 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 3036621220 is about 55105.5461818500. The cubic root of 3036621220 is about 1448.0944004316.

Adding to 3036621220 its reverse (221266303), we get a palindrome (3257887523).

The spelling of 3036621220 in words is "three billion, thirty-six million, six hundred twenty-one thousand, two hundred twenty".