3656215444 has 24 divisors (see below), whose sum is σ = 7328962368. Its totient is φ = 1563407040.

The previous prime is 3656215417. The next prime is 3656215463. The reversal of 3656215444 is 4445126563.

It is a super-2 number, since 2×3656215444² = 26735822745888234272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3656215397 and 3656215406.

It is a congruent number.

It is an unprimeable number.

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, 134977 + ... + 159784.

It is an arithmetic number, because the mean of its divisors is an integer number (305373432).

Almost surely, 2^3656215444 is an apocalyptic number.

It is an amenable number.

3656215444 is an abundant number, since it is smaller than the sum of its proper divisors (3672746924).

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

3656215444 is a wasteful number, since it uses less digits than its factorization.

3656215444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295215 (or 295213 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The square root of 3656215444 is about 60466.6473686114. The cubic root of 3656215444 is about 1540.5551835346. Note that the first 3 decimals are identical.

The spelling of 3656215444 in words is "three billion, six hundred fifty-six million, two hundred fifteen thousand, four hundred forty-four".