2142893238 has 16 divisors (see below), whose sum is σ = 4287668736. Its totient is φ = 713984040.

The previous prime is 2142893237. The next prime is 2142893257. The reversal of 2142893238 is 8323982412.

It is a super-2 number, since 2×2142893238² = 9183982858932249288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2142893238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142893237) 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, 63406 + ... + 91137.

It is an arithmetic number, because the mean of its divisors is an integer number (267979296).

Almost surely, 2^2142893238 is an apocalyptic number.

2142893238 is an abundant number, since it is smaller than the sum of its proper divisors (2144775498).

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

2142893238 is a wasteful number, since it uses less digits than its factorization.

2142893238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156859.

The product of its digits is 165888, while the sum is 42.

The square root of 2142893238 is about 46291.3948590880. The cubic root of 2142893238 is about 1289.2392281284.

The spelling of 2142893238 in words is "two billion, one hundred forty-two million, eight hundred ninety-three thousand, two hundred thirty-eight".