621244068 has 24 divisors (see below), whose sum is σ = 1450344672. Its totient is φ = 206970624.

The previous prime is 621244067. The next prime is 621244087. The reversal of 621244068 is 860442126.

It is not an unprimeable number, because it can be changed into a prime (621244067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11371 + ... + 37037.

It is an arithmetic number, because the mean of its divisors is an integer number (60431028).

Almost surely, 2^621244068 is an apocalyptic number.

It is an amenable number.

621244068 is an abundant number, since it is smaller than the sum of its proper divisors (829100604).

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

621244068 is a wasteful number, since it uses less digits than its factorization.

621244068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27691 (or 27689 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 621244068 is about 24924.7681634153. The cubic root of 621244068 is about 853.2718501573.

The spelling of 621244068 in words is "six hundred twenty-one million, two hundred forty-four thousand, sixty-eight".