303213042 has 24 divisors (see below), whose sum is σ = 716685840. Its totient is φ = 91882680.

The previous prime is 303213023. The next prime is 303213059. The reversal of 303213042 is 240312303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765492 + ... + 765887.

It is an arithmetic number, because the mean of its divisors is an integer number (29861910).

Almost surely, 2^303213042 is an apocalyptic number.

303213042 is an abundant number, since it is smaller than the sum of its proper divisors (413472798).

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

303213042 is a wasteful number, since it uses less digits than its factorization.

303213042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531398 (or 1531395 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 303213042 is about 17413.0135818014. The cubic root of 303213042 is about 671.8143752820.

Adding to 303213042 its reverse (240312303), we get a palindrome (543525345).

The spelling of 303213042 in words is "three hundred three million, two hundred thirteen thousand, forty-two".