620363940 has 288 divisors, whose sum is σ = 2162039040. Its totient is φ = 129991680.

The previous prime is 620363929. The next prime is 620363957. The reversal of 620363940 is 49363026.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 11704954 + ... + 11705006.

It is an arithmetic number, because the mean of its divisors is an integer number (7507080).

Almost surely, 2^620363940 is an apocalyptic number.

620363940 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 620363940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081019520).

620363940 is an abundant number, since it is smaller than the sum of its proper divisors (1541675100).

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

620363940 is a wasteful number, since it uses less digits than its factorization.

620363940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 620363940 is about 24907.1062148938. The cubic root of 620363940 is about 852.8687110308.

The spelling of 620363940 in words is "six hundred twenty million, three hundred sixty-three thousand, nine hundred forty".