606621040 has 80 divisors (see below), whose sum is σ = 1447059168. Its totient is φ = 236407808.

The previous prime is 606621011. The next prime is 606621097. The reversal of 606621040 is 40126606.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 606620996 and 606621014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733107 + ... + 733933.

Almost surely, 2^606621040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 606621040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723529584).

606621040 is an abundant number, since it is smaller than the sum of its proper divisors (840438128).

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

606621040 is a wasteful number, since it uses less digits than its factorization.

606621040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 606621040 is about 24629.6780328124. The cubic root of 606621040 is about 846.5237680864.

Adding to 606621040 its reverse (40126606), we get a palindrome (646747646).

The spelling of 606621040 in words is "six hundred six million, six hundred twenty-one thousand, forty".