38790143 has 4 divisors (see below), whose sum is σ = 44331600. Its totient is φ = 33248688.

The previous prime is 38790131. The next prime is 38790187. The reversal of 38790143 is 34109783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38790143 - 2⁶ = 38790079 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 (38790113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2770718 + ... + 2770731.

It is an arithmetic number, because the mean of its divisors is an integer number (11082900).

Almost surely, 2^38790143 is an apocalyptic number.

38790143 is a deficient number, since it is larger than the sum of its proper divisors (5541457).

38790143 is an equidigital number, since it uses as much as digits as its factorization.

38790143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541456.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 38790143 is about 6228.1733277101. The cubic root of 38790143 is about 338.5117855193.

The spelling of 38790143 in words is "thirty-eight million, seven hundred ninety thousand, one hundred forty-three".