38712142 has 16 divisors (see below), whose sum is σ = 67489920. Its totient is φ = 16309368.

The previous prime is 38712061. The next prime is 38712143. The reversal of 38712142 is 24121783.

It is a self number, because there is not a number n which added to its sum of digits gives 38712142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38712143) 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, 22608 + ... + 24259.

It is an arithmetic number, because the mean of its divisors is an integer number (4218120).

Almost surely, 2^38712142 is an apocalyptic number.

38712142 is a deficient number, since it is larger than the sum of its proper divisors (28777778).

38712142 is a wasteful number, since it uses less digits than its factorization.

38712142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46935.

The product of its digits is 2688, while the sum is 28.

The square root of 38712142 is about 6221.9082281885. The cubic root of 38712142 is about 338.2847349180.

The spelling of 38712142 in words is "thirty-eight million, seven hundred twelve thousand, one hundred forty-two".