38420189 has 8 divisors (see below), whose sum is σ = 40176000. Its totient is φ = 36671536.

The previous prime is 38420183. The next prime is 38420209. The reversal of 38420189 is 98102483.

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 38420189 - 2⁸ = 38419933 is a prime.

It is a super-2 number, since 2×38420189² = 2952221845591442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38420183) 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, 11312 + ... + 14310.

It is an arithmetic number, because the mean of its divisors is an integer number (5022000).

Almost surely, 2^38420189 is an apocalyptic number.

It is an amenable number.

38420189 is a deficient number, since it is larger than the sum of its proper divisors (1755811).

38420189 is a wasteful number, since it uses less digits than its factorization.

38420189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 38420189 is about 6198.4021328081. The cubic root of 38420189 is about 337.4321809775.

The spelling of 38420189 in words is "thirty-eight million, four hundred twenty thousand, one hundred eighty-nine".