620254344 has 64 divisors (see below), whose sum is σ = 1584720000. Its totient is φ = 202245120.

The previous prime is 620254343. The next prime is 620254379. The reversal of 620254344 is 443452026.

It is not an unprimeable number, because it can be changed into a prime (620254343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290272 + ... + 292400.

It is an arithmetic number, because the mean of its divisors is an integer number (24761250).

Almost surely, 2^620254344 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 620254344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (792360000).

620254344 is an abundant number, since it is smaller than the sum of its proper divisors (964465656).

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

620254344 is a wasteful number, since it uses less digits than its factorization.

620254344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 620254344 is about 24904.9060227097. The cubic root of 620254344 is about 852.8184843289.

The spelling of 620254344 in words is "six hundred twenty million, two hundred fifty-four thousand, three hundred forty-four".