38667890 has 16 divisors (see below), whose sum is σ = 69802560. Its totient is φ = 15422640.

The previous prime is 38667883. The next prime is 38667901. The reversal of 38667890 is 9876683.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796 + ... + 8975.

It is an arithmetic number, because the mean of its divisors is an integer number (4362660).

Almost surely, 2^38667890 is an apocalyptic number.

38667890 is a deficient number, since it is larger than the sum of its proper divisors (31134670).

38667890 is a wasteful number, since it uses less digits than its factorization.

38667890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11137.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 38667890 is about 6218.3510676063. The cubic root of 38667890 is about 338.1557875736.

The spelling of 38667890 in words is "thirty-eight million, six hundred sixty-seven thousand, eight hundred ninety".