4020245140 has 24 divisors (see below), whose sum is σ = 8498431872. Its totient is φ = 1597447200.

The previous prime is 4020245129. The next prime is 4020245171. The reversal of 4020245140 is 415420204.

It is a happy number.

It is a congruent number.

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, 662584 + ... + 668623.

It is an arithmetic number, because the mean of its divisors is an integer number (354101328).

Almost surely, 2^4020245140 is an apocalyptic number.

It is an amenable number.

4020245140 is an abundant number, since it is smaller than the sum of its proper divisors (4478186732).

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

4020245140 is a wasteful number, since it uses less digits than its factorization.

4020245140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331367 (or 1331365 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4020245140 is about 63405.4030820718. The cubic root of 4020245140 is about 1590.0746428046.

Adding to 4020245140 its reverse (415420204), we get a palindrome (4435665344).

The spelling of 4020245140 in words is "four billion, twenty million, two hundred forty-five thousand, one hundred forty".