303020040040 has 64 divisors (see below), whose sum is σ = 729444384000. Its totient is φ = 112946192640.

The previous prime is 303020040019. The next prime is 303020040041. The reversal of 303020040040 is 40040020303.

It is a super-2 number, since 2×303020040040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 303020039996 and 303020040023.

It is not an unprimeable number, because it can be changed into a prime (303020040041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3221760 + ... + 3314479.

It is an arithmetic number, because the mean of its divisors is an integer number (11397568500).

Almost surely, 2^303020040040 is an apocalyptic number.

It is an amenable number.

303020040040 is an abundant number, since it is smaller than the sum of its proper divisors (426424343960).

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

303020040040 is a wasteful number, since it uses less digits than its factorization.

303020040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536330 (or 6536326 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 303020040040 its reverse (40040020303), we get a palindrome (343060060343).

The spelling of 303020040040 in words is "three hundred three billion, twenty million, forty thousand, forty".