38690768 has 10 divisors (see below), whose sum is σ = 74963394. Its totient is φ = 19345376.

The previous prime is 38690767. The next prime is 38690791. The reversal of 38690768 is 86709683.

It can be written as a sum of positive squares in only one way, i.e., 38291344 + 399424 = 6188^2 + 632^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38690767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1209071 + ... + 1209102.

Almost surely, 2^38690768 is an apocalyptic number.

It is an amenable number.

38690768 is a deficient number, since it is larger than the sum of its proper divisors (36272626).

38690768 is a wasteful number, since it uses less digits than its factorization.

38690768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418181 (or 2418175 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 38690768 is about 6220.1903507851. The cubic root of 38690768 is about 338.2224647991. Note that the first 3 decimals are identical.

The spelling of 38690768 in words is "thirty-eight million, six hundred ninety thousand, seven hundred sixty-eight".