606401840 has 40 divisors (see below), whose sum is σ = 1538057808. Its totient is φ = 220509440.

The previous prime is 606401837. The next prime is 606401869. The reversal of 606401840 is 48104606.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343667 + ... + 345426.

Almost surely, 2^606401840 is an apocalyptic number.

It is an amenable number.

606401840 is an abundant number, since it is smaller than the sum of its proper divisors (931655968).

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

606401840 is a wasteful number, since it uses less digits than its factorization.

606401840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689117 (or 689111 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 606401840 is about 24625.2277146832. The cubic root of 606401840 is about 846.4217931836.

The spelling of 606401840 in words is "six hundred six million, four hundred one thousand, eight hundred forty".