38670928 has 20 divisors (see below), whose sum is σ = 78868960. Its totient is φ = 18317664.

The previous prime is 38670923. The next prime is 38670941. The reversal of 38670928 is 82907683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38670923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63300 + ... + 63907.

It is an arithmetic number, because the mean of its divisors is an integer number (3943448).

Almost surely, 2^38670928 is an apocalyptic number.

38670928 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38670928 is an abundant number, since it is smaller than the sum of its proper divisors (40198032).

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

38670928 is a wasteful number, since it uses less digits than its factorization.

38670928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127234 (or 127228 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 38670928 is about 6218.5953397853. The cubic root of 38670928 is about 338.1646432450.

The spelling of 38670928 in words is "thirty-eight million, six hundred seventy thousand, nine hundred twenty-eight".