38039990 has 8 divisors (see below), whose sum is σ = 68472000. Its totient is φ = 15215992.

The previous prime is 38039983. The next prime is 38040029. The reversal of 38039990 is 9993083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901990 + ... + 1902009.

It is an arithmetic number, because the mean of its divisors is an integer number (8559000).

Almost surely, 2^38039990 is an apocalyptic number.

38039990 is a deficient number, since it is larger than the sum of its proper divisors (30432010).

38039990 is a wasteful number, since it uses less digits than its factorization.

38039990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804006.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 38039990 is about 6167.6567673631. The cubic root of 38039990 is about 336.3154338922.

The spelling of 38039990 in words is "thirty-eight million, thirty-nine thousand, nine hundred ninety".