2420502021 has 80 divisors (see below), whose sum is σ = 4292344320. Its totient is φ = 1330629120.

The previous prime is 2420502011. The next prime is 2420502043. The reversal of 2420502021 is 1202050242.

It is not a de Polignac number, because 2420502021 - 2⁵ = 2420501989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2420501985 and 2420502003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420502011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1624845 + ... + 1626333.

It is an arithmetic number, because the mean of its divisors is an integer number (53654304).

Almost surely, 2^2420502021 is an apocalyptic number.

2420502021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2420502021 is a deficient number, since it is larger than the sum of its proper divisors (1871842299).

2420502021 is a wasteful number, since it uses less digits than its factorization.

2420502021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2420502021 is about 49198.5977544076. The cubic root of 2420502021 is about 1342.6675200588.

Adding to 2420502021 its reverse (1202050242), we get a palindrome (3622552263).

The spelling of 2420502021 in words is "two billion, four hundred twenty million, five hundred two thousand, twenty-one".