142593738 has 32 divisors (see below), whose sum is σ = 336445440. Its totient is φ = 39426480.

The previous prime is 142593733. The next prime is 142593793. The reversal of 142593738 is 837395241.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142593738.

It is not an unprimeable number, because it can be changed into a prime (142593733) 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 15 ways as a sum of consecutive naturals, for example, 53458 + ... + 56061.

It is an arithmetic number, because the mean of its divisors is an integer number (10513920).

Almost surely, 2^142593738 is an apocalyptic number.

142593738 is an abundant number, since it is smaller than the sum of its proper divisors (193851702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142593738 is a wasteful number, since it uses less digits than its factorization.

142593738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109562.

The product of its digits is 181440, while the sum is 42.

The square root of 142593738 is about 11941.2619936085. The cubic root of 142593738 is about 522.4364679360.

The spelling of 142593738 in words is "one hundred forty-two million, five hundred ninety-three thousand, seven hundred thirty-eight".