620031952 has 10 divisors (see below), whose sum is σ = 1201311938. Its totient is φ = 310015968.

The previous prime is 620031947. The next prime is 620031983. The reversal of 620031952 is 259130026.

It can be written as a sum of positive squares in only one way, i.e., 532871056 + 87160896 = 23084^2 + 9336^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 620031952.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19375983 + ... + 19376014.

Almost surely, 2^620031952 is an apocalyptic number.

It is an amenable number.

620031952 is a deficient number, since it is larger than the sum of its proper divisors (581279986).

620031952 is a wasteful number, since it uses less digits than its factorization.

620031952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38752005 (or 38751999 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 620031952 is about 24900.4407993112. The cubic root of 620031952 is about 852.7165462115.

Adding to 620031952 its reverse (259130026), we get a palindrome (879161978).

The spelling of 620031952 in words is "six hundred twenty million, thirty-one thousand, nine hundred fifty-two".