602020660440 has 64 divisors (see below), whose sum is σ = 1806200920800. Its totient is φ = 160526492672.

The previous prime is 602020660421. The next prime is 602020660489. The reversal of 602020660440 is 44066020206.

It is a super-2 number, since 2×602020660440² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 602020660398 and 602020660407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430044 + ... + 1802516.

Almost surely, 2^602020660440 is an apocalyptic number.

602020660440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

602020660440 is an abundant number, since it is smaller than the sum of its proper divisors (1204180260360).

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

602020660440 is a wasteful number, since it uses less digits than its factorization.

602020660440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385956 (or 385952 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 602020660440 its reverse (44066020206), we get a palindrome (646086680646).

The spelling of 602020660440 in words is "six hundred two billion, twenty million, six hundred sixty thousand, four hundred forty".