620043652 has 24 divisors (see below), whose sum is σ = 1149820056. Its totient is φ = 291552768.

The previous prime is 620043647. The next prime is 620043659. The reversal of 620043652 is 256340026.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 290838916 + 329204736 = 17054^2 + 18144^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 620043652.

It is not an unprimeable number, because it can be changed into a prime (620043659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106858 + ... + 112510.

It is an arithmetic number, because the mean of its divisors is an integer number (47909169).

Almost surely, 2^620043652 is an apocalyptic number.

It is an amenable number.

620043652 is a deficient number, since it is larger than the sum of its proper divisors (529776404).

620043652 is a wasteful number, since it uses less digits than its factorization.

620043652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7287 (or 7285 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 620043652 is about 24900.6757338029. The cubic root of 620043652 is about 852.7219097635.

Adding to 620043652 its reverse (256340026), we get a palindrome (876383678).

It can be divided in two parts, 62004 and 3652, that added together give a palindrome (65656).

The spelling of 620043652 in words is "six hundred twenty million, forty-three thousand, six hundred fifty-two".