4202020040 has 32 divisors (see below), whose sum is σ = 9522576000. Its totient is φ = 1668713664.

The previous prime is 4202020037. The next prime is 4202020079. The reversal of 4202020040 is 400202024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4202019997 and 4202020024.

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, 372320 + ... + 383439.

It is an arithmetic number, because the mean of its divisors is an integer number (297580500).

Almost surely, 2^4202020040 is an apocalyptic number.

4202020040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4202020040 is an abundant number, since it is smaller than the sum of its proper divisors (5320555960).

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

4202020040 is a wasteful number, since it uses less digits than its factorization.

4202020040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755909 (or 755905 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4202020040 is about 64822.9900575405. The cubic root of 4202020040 is about 1613.6872704711.

Adding to 4202020040 its reverse (400202024), we get a palindrome (4602222064).

The spelling of 4202020040 in words is "four billion, two hundred two million, twenty thousand, forty".