601649406 has 24 divisors (see below), whose sum is σ = 1304811144. Its totient is φ = 200359440.

The previous prime is 601649369. The next prime is 601649437. The reversal of 601649406 is 604946106.

601649406 is a `hidden beast` number, since 6 + 0 + 1 + 649 + 4 + 0 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4320 + ... + 34956.

It is an arithmetic number, because the mean of its divisors is an integer number (54367131).

Almost surely, 2^601649406 is an apocalyptic number.

601649406 is an abundant number, since it is smaller than the sum of its proper divisors (703161738).

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

601649406 is a wasteful number, since it uses less digits than its factorization.

601649406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31736 (or 31733 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 601649406 is about 24528.5426799066. The cubic root of 601649406 is about 844.2048264509.

The spelling of 601649406 in words is "six hundred one million, six hundred forty-nine thousand, four hundred six".