361621436 has 12 divisors (see below), whose sum is σ = 690368280. Its totient is φ = 164373360.

The previous prime is 361621409. The next prime is 361621493. The reversal of 361621436 is 634126163.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4109291 + ... + 4109378.

It is an arithmetic number, because the mean of its divisors is an integer number (57530690).

Almost surely, 2^361621436 is an apocalyptic number.

It is an amenable number.

361621436 is a deficient number, since it is larger than the sum of its proper divisors (328746844).

361621436 is a wasteful number, since it uses less digits than its factorization.

361621436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8218684 (or 8218682 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 361621436 is about 19016.3465471157. The cubic root of 361621436 is about 712.4450753188.

Adding to 361621436 its reverse (634126163), we get a palindrome (995747599).

It can be divided in two parts, 3616 and 21436, that added together give a palindrome (25052).

The spelling of 361621436 in words is "three hundred sixty-one million, six hundred twenty-one thousand, four hundred thirty-six".