306442038 has 16 divisors (see below), whose sum is σ = 700439040. Its totient is φ = 87554856.

The previous prime is 306442033. The next prime is 306442049. The reversal of 306442038 is 830244603.

It is a junction number, because it is equal to n+sod(n) for n = 306441996 and 306442014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306442033) 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, 3648078 + ... + 3648161.

It is an arithmetic number, because the mean of its divisors is an integer number (43777440).

Almost surely, 2^306442038 is an apocalyptic number.

306442038 is an abundant number, since it is smaller than the sum of its proper divisors (393997002).

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

306442038 is a wasteful number, since it uses less digits than its factorization.

306442038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7296251.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 306442038 is about 17505.4859401275. The cubic root of 306442038 is about 674.1907360520.

The spelling of 306442038 in words is "three hundred six million, four hundred forty-two thousand, thirty-eight".