3611421436 has 24 divisors (see below), whose sum is σ = 7225273440. Its totient is φ = 1547231232.

The previous prime is 3611421427. The next prime is 3611421439. The reversal of 3611421436 is 6341241163.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3611421398 and 3611421407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3611421439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69756 + ... + 109948.

It is an arithmetic number, because the mean of its divisors is an integer number (301053060).

Almost surely, 2^3611421436 is an apocalyptic number.

It is an amenable number.

3611421436 is an abundant number, since it is smaller than the sum of its proper divisors (3613852004).

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

3611421436 is a wasteful number, since it uses less digits than its factorization.

3611421436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43413 (or 43411 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 3611421436 is about 60095.1032614139. The cubic root of 3611421436 is about 1534.2379600557.

Adding to 3611421436 its reverse (6341241163), we get a palindrome (9952662599).

The spelling of 3611421436 in words is "three billion, six hundred eleven million, four hundred twenty-one thousand, four hundred thirty-six".