302213142 has 48 divisors (see below), whose sum is σ = 816371712. Its totient is φ = 78496560.

The previous prime is 302213113. The next prime is 302213143. The reversal of 302213142 is 241312203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302213143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107638 + ... + 110409.

It is an arithmetic number, because the mean of its divisors is an integer number (17007744).

Almost surely, 2^302213142 is an apocalyptic number.

302213142 is an abundant number, since it is smaller than the sum of its proper divisors (514158570).

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

302213142 is a wasteful number, since it uses less digits than its factorization.

302213142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218073 (or 218070 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 302213142 is about 17384.2785872753. The cubic root of 302213142 is about 671.0750854547.

Adding to 302213142 its reverse (241312203), we get a palindrome (543525345).

It can be divided in two parts, 302 and 213142, that added together give a square (213444 = 462²).

The spelling of 302213142 in words is "three hundred two million, two hundred thirteen thousand, one hundred forty-two".