621127340 has 12 divisors (see below), whose sum is σ = 1304367456. Its totient is φ = 248450928.

The previous prime is 621127321. The next prime is 621127369. The reversal of 621127340 is 43721126.

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 3 ways as a sum of consecutive naturals, for example, 15528164 + ... + 15528203.

It is an arithmetic number, because the mean of its divisors is an integer number (108697288).

Almost surely, 2^621127340 is an apocalyptic number.

It is an amenable number.

621127340 is an abundant number, since it is smaller than the sum of its proper divisors (683240116).

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

621127340 is a wasteful number, since it uses less digits than its factorization.

621127340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31056376 (or 31056374 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 621127340 is about 24922.4264468771. The cubic root of 621127340 is about 853.2184052713.

Adding to 621127340 its reverse (43721126), we get a palindrome (664848466).

The spelling of 621127340 in words is "six hundred twenty-one million, one hundred twenty-seven thousand, three hundred forty".