620209216 has 63 divisors (see below), whose sum is σ = 1357580343. Its totient is φ = 280917120.

The previous prime is 620209193. The next prime is 620209223. The reversal of 620209216 is 612902026.

The square root of 620209216 is 24904.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×620209216² = 769318943222669312, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2191411 + ... + 2191693.

Almost surely, 2^620209216 is an apocalyptic number.

620209216 is the 24904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620209216

620209216 is an abundant number, since it is smaller than the sum of its proper divisors (737371127).

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

620209216 is an equidigital number, since it uses as much as digits as its factorization.

620209216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The cubic root of 620209216 is about 852.7978009182.

The spelling of 620209216 in words is "six hundred twenty million, two hundred nine thousand, two hundred sixteen".