308236442 has 16 divisors (see below), whose sum is σ = 474163200. Its totient is φ = 150190560.

The previous prime is 308236429. The next prime is 308236517. The reversal of 308236442 is 244632803.

It is a junction number, because it is equal to n+sod(n) for n = 308236399 and 308236408.

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, 103409 + ... + 106347.

It is an arithmetic number, because the mean of its divisors is an integer number (29635200).

Almost surely, 2^308236442 is an apocalyptic number.

308236442 is a deficient number, since it is larger than the sum of its proper divisors (165926758).

308236442 is a wasteful number, since it uses less digits than its factorization.

308236442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 308236442 is about 17556.6637491296. The cubic root of 308236442 is about 675.5041077418.

The spelling of 308236442 in words is "three hundred eight million, two hundred thirty-six thousand, four hundred forty-two".