38713930 has 16 divisors (see below), whose sum is σ = 73784520. Its totient is φ = 14574592.

The previous prime is 38713921. The next prime is 38713933. The reversal of 38713930 is 3931783.

38713930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37295449 + 1418481 = 6107^2 + 1191^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (38713933) 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 7 ways as a sum of consecutive naturals, for example, 113695 + ... + 114034.

Almost surely, 2^38713930 is an apocalyptic number.

38713930 is a deficient number, since it is larger than the sum of its proper divisors (35070590).

38713930 is a wasteful number, since it uses less digits than its factorization.

38713930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227753.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 38713930 is about 6222.0519123517. The cubic root of 38713930 is about 338.2899429635.

The spelling of 38713930 in words is "thirty-eight million, seven hundred thirteen thousand, nine hundred thirty".