620040043 has 16 divisors (see below), whose sum is σ = 738651904. Its totient is φ = 509366880.

The previous prime is 620040013. The next prime is 620040067. The reversal of 620040043 is 340040026.

It is a cyclic number.

It is not a de Polignac number, because 620040043 - 2⁵ = 620040011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620040043.

It is not an unprimeable number, because it can be changed into a prime (620040013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513 + ... + 35218.

It is an arithmetic number, because the mean of its divisors is an integer number (46165744).

Almost surely, 2^620040043 is an apocalyptic number.

620040043 is a deficient number, since it is larger than the sum of its proper divisors (118611861).

620040043 is a wasteful number, since it uses less digits than its factorization.

620040043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35842.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 620040043 is about 24900.6032657845. The cubic root of 620040043 is about 852.7202553212.

Adding to 620040043 its reverse (340040026), we get a palindrome (960080069).

The spelling of 620040043 in words is "six hundred twenty million, forty thousand, forty-three".