4020323140 has 24 divisors (see below), whose sum is σ = 8444320920. Its totient is φ = 1607816448.

The previous prime is 4020323129. The next prime is 4020323173. The reversal of 4020323140 is 413230204.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 4020320836 = 48^2 + 63406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105274 + ... + 138286.

It is an arithmetic number, because the mean of its divisors is an integer number (351846705).

Almost surely, 2^4020323140 is an apocalyptic number.

It is an amenable number.

4020323140 is an abundant number, since it is smaller than the sum of its proper divisors (4423997780).

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

4020323140 is a wasteful number, since it uses less digits than its factorization.

4020323140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39111 (or 39109 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4020323140 is about 63406.0181686250. The cubic root of 4020323140 is about 1590.0849261759.

Adding to 4020323140 its reverse (413230204), we get a palindrome (4433553344).

The spelling of 4020323140 in words is "four billion, twenty million, three hundred twenty-three thousand, one hundred forty".