620854416 has 320 divisors, whose sum is σ = 2324851200. Its totient is φ = 153944064.

The previous prime is 620854411. The next prime is 620854441. The reversal of 620854416 is 614458026.

620854416 is a `hidden beast` number, since 6 + 208 + 5 + 441 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (620854411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 667840 + ... + 668768.

It is an arithmetic number, because the mean of its divisors is an integer number (7265160).

Almost surely, 2^620854416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620854416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162425600).

620854416 is an abundant number, since it is smaller than the sum of its proper divisors (1703996784).

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

620854416 is a wasteful number, since it uses less digits than its factorization.

620854416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 620854416 is about 24916.9503751964. The cubic root of 620854416 is about 853.0934186111.

The spelling of 620854416 in words is "six hundred twenty million, eight hundred fifty-four thousand, four hundred sixteen".