606640400 has 60 divisors (see below), whose sum is σ = 1459858944. Its totient is φ = 242256000.

The previous prime is 606640399. The next prime is 606640409. The reversal of 606640400 is 4046606.

It is a self number, because there is not a number n which added to its sum of digits gives 606640400.

It is not an unprimeable number, because it can be changed into a prime (606640409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411665 + ... + 413135.

Almost surely, 2^606640400 is an apocalyptic number.

It is an amenable number.

606640400 is an abundant number, since it is smaller than the sum of its proper divisors (853218544).

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

606640400 is a wasteful number, since it uses less digits than its factorization.

606640400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 606640400 is about 24630.0710514607. The cubic root of 606640400 is about 846.5327734482.

The spelling of 606640400 in words is "six hundred six million, six hundred forty thousand, four hundred".