601668399 has 32 divisors (see below), whose sum is σ = 837688320. Its totient is φ = 383846400.

The previous prime is 601668343. The next prime is 601668439. The reversal of 601668399 is 993866106.

It is not a de Polignac number, because 601668399 - 2⁸ = 601668143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601668499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2517322 + ... + 2517560.

It is an arithmetic number, because the mean of its divisors is an integer number (26177760).

Almost surely, 2^601668399 is an apocalyptic number.

601668399 is a deficient number, since it is larger than the sum of its proper divisors (236019921).

601668399 is a wasteful number, since it uses less digits than its factorization.

601668399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 601668399 is about 24528.9298380504. The cubic root of 601668399 is about 844.2137097049.

The spelling of 601668399 in words is "six hundred one million, six hundred sixty-eight thousand, three hundred ninety-nine".