601980909 has 16 divisors (see below), whose sum is σ = 864559104. Its totient is φ = 371487600.

The previous prime is 601980871. The next prime is 601980917. The reversal of 601980909 is 909089106.

It is not a de Polignac number, because 601980909 - 2⁹ = 601980397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601980919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138577 + ... + 142854.

It is an arithmetic number, because the mean of its divisors is an integer number (54034944).

Almost surely, 2^601980909 is an apocalyptic number.

601980909 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

601980909 is a deficient number, since it is larger than the sum of its proper divisors (262578195).

601980909 is a wasteful number, since it uses less digits than its factorization.

601980909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281488.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 601980909 is about 24535.2992441503. The cubic root of 601980909 is about 844.3598475458.

The spelling of 601980909 in words is "six hundred one million, nine hundred eighty thousand, nine hundred nine".