38390397 has 8 divisors (see below), whose sum is σ = 51951456. Its totient is φ = 25211472.

The previous prime is 38390377. The next prime is 38390441. The reversal of 38390397 is 79309383.

It is a happy number.

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

It is not a de Polignac number, because 38390397 - 2⁶ = 38390333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38390327) 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, 95298 + ... + 95699.

It is an arithmetic number, because the mean of its divisors is an integer number (6493932).

Almost surely, 2^38390397 is an apocalyptic number.

It is an amenable number.

38390397 is a deficient number, since it is larger than the sum of its proper divisors (13561059).

38390397 is a wasteful number, since it uses less digits than its factorization.

38390397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191067.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 38390397 is about 6195.9984667526. The cubic root of 38390397 is about 337.3449405681.

The spelling of 38390397 in words is "thirty-eight million, three hundred ninety thousand, three hundred ninety-seven".