621284082 has 32 divisors (see below), whose sum is σ = 1284979200. Its totient is φ = 200050560.

The previous prime is 621284039. The next prime is 621284087. The reversal of 621284082 is 280482126.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (621284087) 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 15 ways as a sum of consecutive naturals, for example, 111294 + ... + 116742.

It is an arithmetic number, because the mean of its divisors is an integer number (40155600).

Almost surely, 2^621284082 is an apocalyptic number.

621284082 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

621284082 is an abundant number, since it is smaller than the sum of its proper divisors (663695118).

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

621284082 is a wasteful number, since it uses less digits than its factorization.

621284082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6098.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 621284082 is about 24925.5708460208. The cubic root of 621284082 is about 853.2901693594.

The spelling of 621284082 in words is "six hundred twenty-one million, two hundred eighty-four thousand, eighty-two".