4020204002240 has 56 divisors (see below), whose sum is σ = 9574319047920. Its totient is φ = 1607878637568.

The previous prime is 4020204002237. The next prime is 4020204002281. The reversal of 4020204002240 is 422004020204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759316 + ... + 3337004.

Almost surely, 2^{4020204002240} is an apocalyptic number.

4020204002240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4020204002240 is an abundant number, since it is smaller than the sum of its proper divisors (5554115045680).

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

4020204002240 is a wasteful number, since it uses less digits than its factorization.

4020204002240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585669 (or 1585659 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 4020204002240 its reverse (422004020204), we get a palindrome (4442208022444).

The spelling of 4020204002240 in words is "four trillion, twenty billion, two hundred four million, two thousand, two hundred forty".