620040600450 has 72 divisors (see below), whose sum is σ = 1666436756400. Its totient is φ = 165285168480.

The previous prime is 620040600433. The next prime is 620040600457. The reversal of 620040600450 is 54006040026.

It is a happy number.

620040600450 is a `hidden beast` number, since 6 + 2 + 0 + 0 + 4 + 0 + 600 + 4 + 50 = 666.

It is not an unprimeable number, because it can be changed into a prime (620040600457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1024161 + ... + 1512939.

It is an arithmetic number, because the mean of its divisors is an integer number (23144954950).

Almost surely, 2^620040600450 is an apocalyptic number.

620040600450 is an abundant number, since it is smaller than the sum of its proper divisors (1046396155950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620040600450 is a wasteful number, since it uses less digits than its factorization.

620040600450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491616 (or 491608 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 620040600450 its reverse (54006040026), we get a palindrome (674046640476).

The spelling of 620040600450 in words is "six hundred twenty billion, forty million, six hundred thousand, four hundred fifty".