662002420 has 24 divisors (see below), whose sum is σ = 1413770400. Its totient is φ = 260312352.

The previous prime is 662002391. The next prime is 662002421. The reversal of 662002420 is 24200266.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 662002391 and 662002400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662002421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279330 + ... + 281689.

It is an arithmetic number, because the mean of its divisors is an integer number (58907100).

Almost surely, 2^662002420 is an apocalyptic number.

It is an amenable number.

662002420 is an abundant number, since it is smaller than the sum of its proper divisors (751767980).

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

662002420 is a wasteful number, since it uses less digits than its factorization.

662002420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561087 (or 561085 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 662002420 is about 25729.4076884797. The cubic root of 662002420 is about 871.5383975682.

Adding to 662002420 its reverse (24200266), we get a palindrome (686202686).

The spelling of 662002420 in words is "six hundred sixty-two million, two thousand, four hundred twenty".