361620630 has 96 divisors (see below), whose sum is σ = 1077530688. Its totient is φ = 82425600.

The previous prime is 361620629. The next prime is 361620659. The reversal of 361620630 is 36026163.

361620630 is a `hidden beast` number, since 3 + 6 + 1 + 6 + 20 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 361620594 and 361620603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 340300 + ... + 341360.

It is an arithmetic number, because the mean of its divisors is an integer number (11224278).

Almost surely, 2^361620630 is an apocalyptic number.

361620630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 361620630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538765344).

361620630 is an abundant number, since it is smaller than the sum of its proper divisors (715910058).

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

361620630 is a wasteful number, since it uses less digits than its factorization.

361620630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 361620630 is about 19016.3253548103. The cubic root of 361620630 is about 712.4445460073. Note that the first 3 decimals are identical.

Adding to 361620630 its reverse (36026163), we get a palindrome (397646793).

The spelling of 361620630 in words is "three hundred sixty-one million, six hundred twenty thousand, six hundred thirty".