3659821044 has 24 divisors (see below), whose sum is σ = 9315908448. Its totient is φ = 1109036640.

The previous prime is 3659821027. The next prime is 3659821057. The reversal of 3659821044 is 4401289563.

It is a junction number, because it is equal to n+sod(n) for n = 3659820987 and 3659821005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13862827 + ... + 13863090.

It is an arithmetic number, because the mean of its divisors is an integer number (388162852).

Almost surely, 2^3659821044 is an apocalyptic number.

It is an amenable number.

3659821044 is an abundant number, since it is smaller than the sum of its proper divisors (5656087404).

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

3659821044 is a wasteful number, since it uses less digits than its factorization.

3659821044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27725935 (or 27725933 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 3659821044 is about 60496.4548052198. The cubic root of 3659821044 is about 1541.0614265742.

The spelling of 3659821044 in words is "three billion, six hundred fifty-nine million, eight hundred twenty-one thousand, forty-four".