302890142 has 4 divisors (see below), whose sum is σ = 454335216. Its totient is φ = 151445070.

The previous prime is 302890141. The next prime is 302890169. The reversal of 302890142 is 241098203.

302890142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241098203 = 47 ⋅5129749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302890141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75722534 + ... + 75722537.

It is an arithmetic number, because the mean of its divisors is an integer number (113583804).

Almost surely, 2^302890142 is an apocalyptic number.

302890142 is a deficient number, since it is larger than the sum of its proper divisors (151445074).

302890142 is a wasteful number, since it uses less digits than its factorization.

302890142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151445073.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 302890142 is about 17403.7393108493. The cubic root of 302890142 is about 671.5758126414.

The spelling of 302890142 in words is "three hundred two million, eight hundred ninety thousand, one hundred forty-two".