38391901 has 8 divisors (see below), whose sum is σ = 39201408. Its totient is φ = 37590000.

The previous prime is 38391893. The next prime is 38391907. The reversal of 38391901 is 10919383.

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

It is a cyclic number.

It is not a de Polignac number, because 38391901 - 2³ = 38391893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38391907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8931 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (4900176).

Almost surely, 2^38391901 is an apocalyptic number.

It is an amenable number.

38391901 is a deficient number, since it is larger than the sum of its proper divisors (809507).

38391901 is a wasteful number, since it uses less digits than its factorization.

38391901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 38391901 is about 6196.1198342188. The cubic root of 38391901 is about 337.3493458379.

The spelling of 38391901 in words is "thirty-eight million, three hundred ninety-one thousand, nine hundred one".