361026220 has 72 divisors (see below), whose sum is σ = 830163600. Its totient is φ = 131362560.

The previous prime is 361026187. The next prime is 361026221. The reversal of 361026220 is 22620163.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 361026191 and 361026200.

It is not an unprimeable number, because it can be changed into a prime (361026221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1994530 + ... + 1994710.

It is an arithmetic number, because the mean of its divisors is an integer number (11530050).

Almost surely, 2^361026220 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 361026220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415081800).

361026220 is an abundant number, since it is smaller than the sum of its proper divisors (469137380).

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

361026220 is a wasteful number, since it uses less digits than its factorization.

361026220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 361026220 is about 19000.6899874715. The cubic root of 361026220 is about 712.0539742570.

Adding to 361026220 its reverse (22620163), we get a palindrome (383646383).

The spelling of 361026220 in words is "three hundred sixty-one million, twenty-six thousand, two hundred twenty".