38287142 has 4 divisors (see below), whose sum is σ = 57430716. Its totient is φ = 19143570.

The previous prime is 38287141. The next prime is 38287211. The reversal of 38287142 is 24178283.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38287141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9571784 + ... + 9571787.

It is an arithmetic number, because the mean of its divisors is an integer number (14357679).

Almost surely, 2^38287142 is an apocalyptic number.

38287142 is a deficient number, since it is larger than the sum of its proper divisors (19143574).

38287142 is a wasteful number, since it uses less digits than its factorization.

38287142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19143573.

The product of its digits is 21504, while the sum is 35.

The square root of 38287142 is about 6187.6604625658. The cubic root of 38287142 is about 337.0422274774.

The spelling of 38287142 in words is "thirty-eight million, two hundred eighty-seven thousand, one hundred forty-two".