620445741 has 16 divisors (see below), whose sum is σ = 871343040. Its totient is φ = 391616640.

The previous prime is 620445739. The next prime is 620445751. The reversal of 620445741 is 147544026.

It is not a de Polignac number, because 620445741 - 2¹ = 620445739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620445751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147321 + ... + 151473.

It is an arithmetic number, because the mean of its divisors is an integer number (54458940).

Almost surely, 2^620445741 is an apocalyptic number.

It is an amenable number.

620445741 is a deficient number, since it is larger than the sum of its proper divisors (250897299).

620445741 is a wasteful number, since it uses less digits than its factorization.

620445741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 620445741 is about 24908.7482824810. The cubic root of 620445741 is about 852.9061957194.

Adding to 620445741 its reverse (147544026), we get a palindrome (767989767).

The spelling of 620445741 in words is "six hundred twenty million, four hundred forty-five thousand, seven hundred forty-one".