38740028 has 6 divisors (see below), whose sum is σ = 67795056. Its totient is φ = 19370012.

The previous prime is 38740021. The next prime is 38740043. The reversal of 38740028 is 82004783.

It is a junction number, because it is equal to n+sod(n) for n = 38739976 and 38740003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38740021) 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 as a sum of consecutive naturals, namely, 4842500 + ... + 4842507.

It is an arithmetic number, because the mean of its divisors is an integer number (11299176).

Almost surely, 2^38740028 is an apocalyptic number.

It is an amenable number.

38740028 is a deficient number, since it is larger than the sum of its proper divisors (29055028).

38740028 is a wasteful number, since it uses less digits than its factorization.

38740028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9685011 (or 9685009 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 38740028 is about 6224.1487771421. The cubic root of 38740028 is about 338.3659423759.

The spelling of 38740028 in words is "thirty-eight million, seven hundred forty thousand, twenty-eight".