3657869394 has 8 divisors (see below), whose sum is σ = 7315738800. Its totient is φ = 1219289796.

The previous prime is 3657869387. The next prime is 3657869431. The reversal of 3657869394 is 4939687563.

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

3657869394 is an admirable number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304822444 + ... + 304822455.

It is an arithmetic number, because the mean of its divisors is an integer number (914467350).

Almost surely, 2^3657869394 is an apocalyptic number.

3657869394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3657869394 is a wasteful number, since it uses less digits than its factorization.

3657869394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609644904.

The product of its digits is 29393280, while the sum is 60.

The square root of 3657869394 is about 60480.3223701726. The cubic root of 3657869394 is about 1540.7874471207.

The spelling of 3657869394 in words is "three billion, six hundred fifty-seven million, eight hundred sixty-nine thousand, three hundred ninety-four".