620242854 has 144 divisors (see below), whose sum is σ = 1622863872. Its totient is φ = 154677600.

The previous prime is 620242853. The next prime is 620242871. The reversal of 620242854 is 458242026.

620242854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620242853) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4883739 + ... + 4883865.

It is an arithmetic number, because the mean of its divisors is an integer number (11269888).

Almost surely, 2^620242854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620242854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811431936).

620242854 is an abundant number, since it is smaller than the sum of its proper divisors (1002621018).

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

620242854 is a wasteful number, since it uses less digits than its factorization.

620242854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 620242854 is about 24904.6753441999. The cubic root of 620242854 is about 852.8132182393.

The spelling of 620242854 in words is "six hundred twenty million, two hundred forty-two thousand, eight hundred fifty-four".