2420042206640 has 40 divisors (see below), whose sum is σ = 5957574494400. Its totient is φ = 911074712576.

The previous prime is 2420042206613. The next prime is 2420042206693. The reversal of 2420042206640 is 466022400242.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2420042206597 and 2420042206606.

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, 889720040 + ... + 889722759.

It is an arithmetic number, because the mean of its divisors is an integer number (148939362360).

Almost surely, 2^{2420042206640} is an apocalyptic number.

2420042206640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420042206640 is an abundant number, since it is smaller than the sum of its proper divisors (3537532287760).

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

2420042206640 is a wasteful number, since it uses less digits than its factorization.

2420042206640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779442829 (or 1779442823 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 2420042206640 its reverse (466022400242), we get a palindrome (2886064606882).

The spelling of 2420042206640 in words is "two trillion, four hundred twenty billion, forty-two million, two hundred six thousand, six hundred forty".