2002218420 has 24 divisors (see below), whose sum is σ = 5606211744. Its totient is φ = 533924896.

The previous prime is 2002218409. The next prime is 2002218431. The reversal of 2002218420 is 248122002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2002218409) and next prime (2002218431).

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, 16685094 + ... + 16685213.

It is an arithmetic number, because the mean of its divisors is an integer number (233592156).

Almost surely, 2^2002218420 is an apocalyptic number.

2002218420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002218420 is an abundant number, since it is smaller than the sum of its proper divisors (3603993324).

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

2002218420 is a wasteful number, since it uses less digits than its factorization.

2002218420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33370319 (or 33370317 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2002218420 is about 44746.1553655730. The cubic root of 2002218420 is about 1260.3867167724.

The spelling of 2002218420 in words is "two billion, two million, two hundred eighteen thousand, four hundred twenty".