40304030020 has 12 divisors (see below), whose sum is σ = 84638463084. Its totient is φ = 16121612000.

The previous prime is 40304029979. The next prime is 40304030047. The reversal of 40304030020 is 2003040304.

It can be written as a sum of positive squares in 2 ways, for example, as 32027397444 + 8276632576 = 178962^2 + 90976^2 .

It is a super-2 number, since 2×40304030020² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40304029976 and 40304030003.

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, 1007600731 + ... + 1007600770.

It is an arithmetic number, because the mean of its divisors is an integer number (7053205257).

Almost surely, 2^40304030020 is an apocalyptic number.

It is an amenable number.

40304030020 is an abundant number, since it is smaller than the sum of its proper divisors (44334433064).

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

40304030020 is a wasteful number, since it uses less digits than its factorization.

40304030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015201510 (or 2015201508 counting only the distinct ones).

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

Adding to 40304030020 its reverse (2003040304), we get a palindrome (42307070324).

The spelling of 40304030020 in words is "forty billion, three hundred four million, thirty thousand, twenty".