620140507 has 16 divisors (see below), whose sum is σ = 715968000. Its totient is φ = 526144320.

The previous prime is 620140463. The next prime is 620140517. The reversal of 620140507 is 705041026.

It is a cyclic number.

It is not a de Polignac number, because 620140507 - 2²⁷ = 485922779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620140517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548719 + ... + 549847.

It is an arithmetic number, because the mean of its divisors is an integer number (44748000).

Almost surely, 2^620140507 is an apocalyptic number.

620140507 is a deficient number, since it is larger than the sum of its proper divisors (95827493).

620140507 is a wasteful number, since it uses less digits than its factorization.

620140507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 620140507 is about 24902.6204845996. The cubic root of 620140507 is about 852.7663077562.

The spelling of 620140507 in words is "six hundred twenty million, one hundred forty thousand, five hundred seven".