623857020 has 192 divisors, whose sum is σ = 1926758400. Its totient is φ = 150232320.

The previous prime is 623856983. The next prime is 623857021. The reversal of 623857020 is 20758326.

623857020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623857021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4488111 + ... + 4488249.

It is an arithmetic number, because the mean of its divisors is an integer number (10035200).

Almost surely, 2^623857020 is an apocalyptic number.

623857020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623857020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (963379200).

623857020 is an abundant number, since it is smaller than the sum of its proper divisors (1302901380).

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

623857020 is a wasteful number, since it uses less digits than its factorization.

623857020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 623857020 is about 24977.1299392064. The cubic root of 623857020 is about 854.4664637537.

The spelling of 623857020 in words is "six hundred twenty-three million, eight hundred fifty-seven thousand, twenty".