308245442 has 8 divisors (see below), whose sum is σ = 463288896. Its totient is φ = 153815812.

The previous prime is 308245433. The next prime is 308245447. The reversal of 308245442 is 244542803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 308245399 and 308245408.

It is not an unprimeable number, because it can be changed into a prime (308245447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152198 + ... + 154209.

It is an arithmetic number, because the mean of its divisors is an integer number (57911112).

Almost surely, 2^308245442 is an apocalyptic number.

308245442 is a deficient number, since it is larger than the sum of its proper divisors (155043454).

308245442 is a wasteful number, since it uses less digits than its factorization.

308245442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306912.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 308245442 is about 17556.9200601928. The cubic root of 308245442 is about 675.5106822162.

The spelling of 308245442 in words is "three hundred eight million, two hundred forty-five thousand, four hundred forty-two".