361211620 has 72 divisors (see below), whose sum is σ = 952926912. Its totient is φ = 112580160.

The previous prime is 361211593. The next prime is 361211647. The reversal of 361211620 is 26112163.

It is an interprime number because it is at equal distance from previous prime (361211593) and next prime (361211647).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 361211591 and 361211600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6279 + ... + 27601.

It is an arithmetic number, because the mean of its divisors is an integer number (13235096).

Almost surely, 2^361211620 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 361211620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476463456).

361211620 is an abundant number, since it is smaller than the sum of its proper divisors (591715292).

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

361211620 is a wasteful number, since it uses less digits than its factorization.

361211620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21361 (or 21348 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 361211620 is about 19005.5681314714. The cubic root of 361211620 is about 712.1758418738.

Adding to 361211620 its reverse (26112163), we get a palindrome (387323783).

The spelling of 361211620 in words is "three hundred sixty-one million, two hundred eleven thousand, six hundred twenty".