38486978 has 16 divisors (see below), whose sum is σ = 59269056. Its totient is φ = 18733680.

The previous prime is 38486971. The next prime is 38487019. The reversal of 38486978 is 87968483.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38486971) by changing a digit.

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, 35675 + ... + 36737.

It is an arithmetic number, because the mean of its divisors is an integer number (3704316).

Almost surely, 2^38486978 is an apocalyptic number.

38486978 is a deficient number, since it is larger than the sum of its proper divisors (20782078).

38486978 is a wasteful number, since it uses less digits than its factorization.

38486978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529.

The product of its digits is 2322432, while the sum is 53.

The square root of 38486978 is about 6203.7873915859. The cubic root of 38486978 is about 337.6275965645.

The spelling of 38486978 in words is "thirty-eight million, four hundred eighty-six thousand, nine hundred seventy-eight".