38109892 has 6 divisors (see below), whose sum is σ = 66692318. Its totient is φ = 19054944.

The previous prime is 38109871. The next prime is 38109899. The reversal of 38109892 is 29890183.

It can be written as a sum of positive squares in only one way, i.e., 37161216 + 948676 = 6096^2 + 974^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38109899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4763733 + ... + 4763740.

Almost surely, 2^38109892 is an apocalyptic number.

It is an amenable number.

38109892 is a deficient number, since it is larger than the sum of its proper divisors (28582426).

38109892 is a wasteful number, since it uses less digits than its factorization.

38109892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9527477 (or 9527475 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 38109892 is about 6173.3209863087. The cubic root of 38109892 is about 336.5213114094.

The spelling of 38109892 in words is "thirty-eight million, one hundred nine thousand, eight hundred ninety-two".