621241746 has 16 divisors (see below), whose sum is σ = 1307877600. Its totient is φ = 196181568.

The previous prime is 621241721. The next prime is 621241757. The reversal of 621241746 is 647142126.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2724631 + ... + 2724858.

It is an arithmetic number, because the mean of its divisors is an integer number (81742350).

Almost surely, 2^621241746 is an apocalyptic number.

621241746 is an abundant number, since it is smaller than the sum of its proper divisors (686635854).

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

621241746 is a wasteful number, since it uses less digits than its factorization.

621241746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5449513.

The product of its digits is 16128, while the sum is 33.

The square root of 621241746 is about 24924.7215831993. The cubic root of 621241746 is about 853.2707870756.

The spelling of 621241746 in words is "six hundred twenty-one million, two hundred forty-one thousand, seven hundred forty-six".