3661374838 has 16 divisors (see below), whose sum is σ = 5992269840. Its totient is φ = 1664003200.

The previous prime is 3661374817. The next prime is 3661374839. The reversal of 3661374838 is 8384731663.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3661374791 and 3661374800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661374839) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 269898 + ... + 283138.

It is an arithmetic number, because the mean of its divisors is an integer number (374516865).

Almost surely, 2^3661374838 is an apocalyptic number.

3661374838 is a deficient number, since it is larger than the sum of its proper divisors (2330895002).

3661374838 is a wasteful number, since it uses less digits than its factorization.

3661374838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25823.

The product of its digits is 1741824, while the sum is 49.

The square root of 3661374838 is about 60509.2954677213. The cubic root of 3661374838 is about 1541.2794839770.

The spelling of 3661374838 in words is "three billion, six hundred sixty-one million, three hundred seventy-four thousand, eight hundred thirty-eight".