303020042 has 12 divisors (see below), whose sum is σ = 492183990. Its totient is φ = 139855248.

The previous prime is 303020033. The next prime is 303020057. The reversal of 303020042 is 240020303.

It can be written as a sum of positive squares in 3 ways, for example, as 67059721 + 235960321 = 8189^2 + 15361^2 .

It is a super-2 number, since 2×303020042² = 183642291707363528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 303019999 and 303020026.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 447917 + ... + 448592.

Almost surely, 2^303020042 is an apocalyptic number.

303020042 is a deficient number, since it is larger than the sum of its proper divisors (189163948).

303020042 is a wasteful number, since it uses less digits than its factorization.

303020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896537 (or 896524 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 303020042 is about 17407.4708674178. The cubic root of 303020042 is about 671.6718047936.

Adding to 303020042 its reverse (240020303), we get a palindrome (543040345).

The spelling of 303020042 in words is "three hundred three million, twenty thousand, forty-two".