38120709 has 16 divisors (see below), whose sum is σ = 56024640. Its totient is φ = 22863360.

The previous prime is 38120689. The next prime is 38120711. The reversal of 38120709 is 90702183.

It is a happy number.

It is not a de Polignac number, because 38120709 - 2¹² = 38116613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38120759) 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 15 ways as a sum of consecutive naturals, for example, 2754 + ... + 9155.

It is an arithmetic number, because the mean of its divisors is an integer number (3501540).

Almost surely, 2^38120709 is an apocalyptic number.

It is an amenable number.

38120709 is a deficient number, since it is larger than the sum of its proper divisors (17903931).

38120709 is a wasteful number, since it uses less digits than its factorization.

38120709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12020.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 38120709 is about 6174.1970328133. The cubic root of 38120709 is about 336.5531474716.

The spelling of 38120709 in words is "thirty-eight million, one hundred twenty thousand, seven hundred nine".