3661814492 has 48 divisors (see below), whose sum is σ = 7578547200. Its totient is φ = 1547204400.

The previous prime is 3661814473. The next prime is 3661814503. The reversal of 3661814492 is 2944181663.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78617 + ... + 116207.

It is an arithmetic number, because the mean of its divisors is an integer number (157886400).

Almost surely, 2^3661814492 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 3661814492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3789273600).

3661814492 is an abundant number, since it is smaller than the sum of its proper divisors (3916732708).

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

3661814492 is a wasteful number, since it uses less digits than its factorization.

3661814492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37687 (or 37671 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 3661814492 is about 60512.9283046193. The cubic root of 3661814492 is about 1541.3411732421.

The spelling of 3661814492 in words is "three billion, six hundred sixty-one million, eight hundred fourteen thousand, four hundred ninety-two".