303420402 has 24 divisors (see below), whose sum is σ = 664801020. Its totient is φ = 100003200.

The previous prime is 303420349. The next prime is 303420407. The reversal of 303420402 is 204024303.

It can be written as a sum of positive squares in 2 ways, for example, as 254434401 + 48986001 = 15951^2 + 6999^2 .

It is a super-3 number, since 3×303420402³ (a number of 26 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (303420407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93099 + ... + 96302.

Almost surely, 2^303420402 is an apocalyptic number.

303420402 is an abundant number, since it is smaller than the sum of its proper divisors (361380618).

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

303420402 is a wasteful number, since it uses less digits than its factorization.

303420402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189498 (or 189495 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 303420402 is about 17418.9667316980. The cubic root of 303420402 is about 671.9674862033.

Adding to 303420402 its reverse (204024303), we get a palindrome (507444705).

It can be divided in two parts, 3034 and 20402, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 303420402 in words is "three hundred three million, four hundred twenty thousand, four hundred two".