621062140 has 24 divisors (see below), whose sum is σ = 1305379152. Its totient is φ = 248206080.

The previous prime is 621062107. The next prime is 621062171. The reversal of 621062140 is 41260126.

621062140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 10660 + ... + 36820.

It is an arithmetic number, because the mean of its divisors is an integer number (54390798).

Almost surely, 2^621062140 is an apocalyptic number.

It is an amenable number.

621062140 is an abundant number, since it is smaller than the sum of its proper divisors (684317012).

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

621062140 is a wasteful number, since it uses less digits than its factorization.

621062140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27357 (or 27355 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 621062140 is about 24921.1183537176. The cubic root of 621062140 is about 853.1885499941.

It can be divided in two parts, 62106 and 2140, that added together give a palindrome (64246).

The spelling of 621062140 in words is "six hundred twenty-one million, sixty-two thousand, one hundred forty".