142893838 has 8 divisors (see below), whose sum is σ = 214805088. Its totient is φ = 71292144.

The previous prime is 142893833. The next prime is 142893841. The reversal of 142893838 is 838398241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142893833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76231 + ... + 78082.

It is an arithmetic number, because the mean of its divisors is an integer number (26850636).

Almost surely, 2^142893838 is an apocalyptic number.

142893838 is a deficient number, since it is larger than the sum of its proper divisors (71911250).

142893838 is a wasteful number, since it uses less digits than its factorization.

142893838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154778.

The product of its digits is 331776, while the sum is 46.

The square root of 142893838 is about 11953.8210627397. The cubic root of 142893838 is about 522.8027143248.

It can be divided in two parts, 1428 and 93838, that added together give a triangular number (95266 = T₄₃₆).

The spelling of 142893838 in words is "one hundred forty-two million, eight hundred ninety-three thousand, eight hundred thirty-eight".