38240143 has 8 divisors (see below), whose sum is σ = 39839360. Its totient is φ = 36663840.

The previous prime is 38240131. The next prime is 38240171. The reversal of 38240143 is 34104283.

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 38240143 - 2¹³ = 38231951 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 (38240173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2280 + ... + 9037.

It is an arithmetic number, because the mean of its divisors is an integer number (4979920).

Almost surely, 2^38240143 is an apocalyptic number.

38240143 is a deficient number, since it is larger than the sum of its proper divisors (1599217).

38240143 is a wasteful number, since it uses less digits than its factorization.

38240143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11457.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 38240143 is about 6183.8614958616. The cubic root of 38240143 is about 336.9042600649.

It can be divided in two parts, 38240 and 143, that added together give a palindrome (38383).

The spelling of 38240143 in words is "thirty-eight million, two hundred forty thousand, one hundred forty-three".