306710142 has 32 divisors (see below), whose sum is σ = 630571392. Its totient is φ = 99400224.

The previous prime is 306710087. The next prime is 306710147. The reversal of 306710142 is 241017603.

It is a super-2 number, since 2×306710142² = 188142222411320328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306710147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55948 + ... + 61184.

It is an arithmetic number, because the mean of its divisors is an integer number (19705356).

Almost surely, 2^306710142 is an apocalyptic number.

306710142 is an abundant number, since it is smaller than the sum of its proper divisors (323861250).

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

306710142 is a wasteful number, since it uses less digits than its factorization.

306710142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 306710142 is about 17513.1419796677. The cubic root of 306710142 is about 674.3872936638.

Adding to 306710142 its reverse (241017603), we get a palindrome (547727745).

The spelling of 306710142 in words is "three hundred six million, seven hundred ten thousand, one hundred forty-two".