38878142 has 16 divisors (see below), whose sum is σ = 64056960. Its totient is φ = 17614872.

The previous prime is 38878141. The next prime is 38878159. The reversal of 38878142 is 24187883.

It is a self number, because there is not a number n which added to its sum of digits gives 38878142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38878141) 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, 21368 + ... + 23115.

It is an arithmetic number, because the mean of its divisors is an integer number (4003560).

Almost surely, 2^38878142 is an apocalyptic number.

38878142 is a deficient number, since it is larger than the sum of its proper divisors (25178818).

38878142 is a wasteful number, since it uses less digits than its factorization.

38878142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44527.

The product of its digits is 86016, while the sum is 41.

The square root of 38878142 is about 6235.2339170235. The cubic root of 38878142 is about 338.7675738762.

The spelling of 38878142 in words is "thirty-eight million, eight hundred seventy-eight thousand, one hundred forty-two".