38649338 has 48 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 14613984.

The previous prime is 38649319. The next prime is 38649353. The reversal of 38649338 is 83394683.

38649338 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 28643 + ... + 29961.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 2^38649338 is an apocalyptic number.

38649338 is a deficient number, since it is larger than the sum of its proper divisors (37192582).

38649338 is a wasteful number, since it uses less digits than its factorization.

38649338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371 (or 1364 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 38649338 is about 6216.8591748567. The cubic root of 38649338 is about 338.1016990286.

The spelling of 38649338 in words is "thirty-eight million, six hundred forty-nine thousand, three hundred thirty-eight".