606720440 has 16 divisors (see below), whose sum is σ = 1365121080. Its totient is φ = 242688160.

The previous prime is 606720421. The next prime is 606720449. The reversal of 606720440 is 44027606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606720449) 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 3 ways as a sum of consecutive naturals, for example, 7583966 + ... + 7584045.

Almost surely, 2^606720440 is an apocalyptic number.

It is an amenable number.

606720440 is an abundant number, since it is smaller than the sum of its proper divisors (758400640).

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

606720440 is a wasteful number, since it uses less digits than its factorization.

606720440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15168022 (or 15168018 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 606720440 is about 24631.6958409282. The cubic root of 606720440 is about 846.5700022598.

The spelling of 606720440 in words is "six hundred six million, seven hundred twenty thousand, four hundred forty".