303440042 has 8 divisors (see below), whose sum is σ = 455295936. Its totient is φ = 151674732.

The previous prime is 303440029. The next prime is 303440077. The reversal of 303440042 is 240044303.

It is a happy number.

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 = 303439996 and 303440023.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13538 + ... + 28109.

It is an arithmetic number, because the mean of its divisors is an integer number (56911992).

Almost surely, 2^303440042 is an apocalyptic number.

303440042 is a deficient number, since it is larger than the sum of its proper divisors (151855894).

303440042 is a wasteful number, since it uses less digits than its factorization.

303440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45292.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 303440042 is about 17419.5304758768. The cubic root of 303440042 is about 671.9819844117.

Adding to 303440042 its reverse (240044303), we get a palindrome (543484345).

The spelling of 303440042 in words is "three hundred three million, four hundred forty thousand, forty-two".