601649856 has 140 divisors (see below), whose sum is σ = 1888665768. Its totient is φ = 188725248.

The previous prime is 601649849. The next prime is 601649897. The reversal of 601649856 is 658946106.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84715 + ... + 91541.

Almost surely, 2^601649856 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 601649856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944332884).

601649856 is an abundant number, since it is smaller than the sum of its proper divisors (1287015912).

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

601649856 is a wasteful number, since it uses less digits than its factorization.

601649856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868 (or 6849 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 601649856 is about 24528.5518528918. The cubic root of 601649856 is about 844.2050369235.

The spelling of 601649856 in words is "six hundred one million, six hundred forty-nine thousand, eight hundred fifty-six".