3656323438 has 8 divisors (see below), whose sum is σ = 5490279432. Its totient is φ = 1826230296.

The previous prime is 3656323361. The next prime is 3656323439. The reversal of 3656323438 is 8343236563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3656323394 and 3656323403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656323439) 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 3 ways as a sum of consecutive naturals, for example, 963345 + ... + 967132.

It is an arithmetic number, because the mean of its divisors is an integer number (686284929).

Almost surely, 2^3656323438 is an apocalyptic number.

3656323438 is a deficient number, since it is larger than the sum of its proper divisors (1833955994).

3656323438 is a wasteful number, since it uses less digits than its factorization.

3656323438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931426.

The product of its digits is 933120, while the sum is 43.

The square root of 3656323438 is about 60467.5403667125. The cubic root of 3656323438 is about 1540.5703512293.

The spelling of 3656323438 in words is "three billion, six hundred fifty-six million, three hundred twenty-three thousand, four hundred thirty-eight".