621041224244 has 24 divisors (see below), whose sum is σ = 1265517969408. Its totient is φ = 261138627360.

The previous prime is 621041224229. The next prime is 621041224259. The reversal of 621041224244 is 442422140126.

It is an interprime number because it is at equal distance from previous prime (621041224229) and next prime (621041224259).

It is a self number, because there is not a number n which added to its sum of digits gives 621041224244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209244212 + ... + 209247179.

It is an arithmetic number, because the mean of its divisors is an integer number (52729915392).

Almost surely, 2^621041224244 is an apocalyptic number.

It is an amenable number.

621041224244 is an abundant number, since it is smaller than the sum of its proper divisors (644476745164).

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

621041224244 is a wasteful number, since it uses less digits than its factorization.

621041224244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418491455 (or 418491453 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The spelling of 621041224244 in words is "six hundred twenty-one billion, forty-one million, two hundred twenty-four thousand, two hundred forty-four".