38420393 has 8 divisors (see below), whose sum is σ = 43046400. Its totient is φ = 33983280.

The previous prime is 38420353. The next prime is 38420399. The reversal of 38420393 is 39302483.

It is a happy number.

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 38420393 - 2¹² = 38416297 is a prime.

It is a super-2 number, since 2×38420393² = 2952253196548898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38420399) 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, 46793 + ... + 47606.

It is an arithmetic number, because the mean of its divisors is an integer number (5380800).

Almost surely, 2^38420393 is an apocalyptic number.

It is an amenable number.

38420393 is a deficient number, since it is larger than the sum of its proper divisors (4626007).

38420393 is a wasteful number, since it uses less digits than its factorization.

38420393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94447.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 38420393 is about 6198.4185886402. The cubic root of 38420393 is about 337.4327781986.

The spelling of 38420393 in words is "thirty-eight million, four hundred twenty thousand, three hundred ninety-three".