38890929 has 32 divisors (see below), whose sum is σ = 68060160. Its totient is φ = 19137600.

The previous prime is 38890921. The next prime is 38890981. The reversal of 38890929 is 92909883.

38890929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38890929 - 2³ = 38890921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38890921) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 42 + ... + 8819.

It is an arithmetic number, because the mean of its divisors is an integer number (2126880).

Almost surely, 2^38890929 is an apocalyptic number.

It is an amenable number.

38890929 is a deficient number, since it is larger than the sum of its proper divisors (29169231).

38890929 is a wasteful number, since it uses less digits than its factorization.

38890929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8901.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 38890929 is about 6236.2592152668. The cubic root of 38890929 is about 338.8047099628.

The spelling of 38890929 in words is "thirty-eight million, eight hundred ninety thousand, nine hundred twenty-nine".