306957442 has 16 divisors (see below), whose sum is σ = 502732800. Its totient is φ = 139404240.

The previous prime is 306957421. The next prime is 306957463. The reversal of 306957442 is 244759603.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (306957421) and next prime (306957463).

It is a junction number, because it is equal to n+sod(n) for n = 306957395 and 306957404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22684 + ... + 33592.

It is an arithmetic number, because the mean of its divisors is an integer number (31420800).

Almost surely, 2^306957442 is an apocalyptic number.

306957442 is a deficient number, since it is larger than the sum of its proper divisors (195775358).

306957442 is a wasteful number, since it uses less digits than its factorization.

306957442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 306957442 is about 17520.2009691670. The cubic root of 306957442 is about 674.5684975120.

The spelling of 306957442 in words is "three hundred six million, nine hundred fifty-seven thousand, four hundred forty-two".