620424053240 has 32 divisors (see below), whose sum is σ = 1396349556480. Its totient is φ = 248099321472.

The previous prime is 620424053233. The next prime is 620424053287. The reversal of 620424053240 is 42350424026.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 620424053197 and 620424053206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2053784 + ... + 2336423.

It is an arithmetic number, because the mean of its divisors is an integer number (43635923640).

Almost surely, 2^620424053240 is an apocalyptic number.

It is an amenable number.

620424053240 is an abundant number, since it is smaller than the sum of its proper divisors (775925503240).

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

620424053240 is a wasteful number, since it uses less digits than its factorization.

620424053240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393751 (or 4393747 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 620424053240 its reverse (42350424026), we get a palindrome (662774477266).

The spelling of 620424053240 in words is "six hundred twenty billion, four hundred twenty-four million, fifty-three thousand, two hundred forty".