601855820 has 12 divisors (see below), whose sum is σ = 1263897264. Its totient is φ = 240742320.

The previous prime is 601855819. The next prime is 601855823. The reversal of 601855820 is 28558106.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (601855823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15046376 + ... + 15046415.

It is an arithmetic number, because the mean of its divisors is an integer number (105324772).

Almost surely, 2^601855820 is an apocalyptic number.

It is an amenable number.

601855820 is an abundant number, since it is smaller than the sum of its proper divisors (662041444).

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

601855820 is a wasteful number, since it uses less digits than its factorization.

601855820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30092800 (or 30092798 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 601855820 is about 24532.7499477739. The cubic root of 601855820 is about 844.3013587332.

The spelling of 601855820 in words is "six hundred one million, eight hundred fifty-five thousand, eight hundred twenty".