620211420 has 72 divisors (see below), whose sum is σ = 1942012800. Its totient is φ = 160053120.

The previous prime is 620211409. The next prime is 620211499. The reversal of 620211420 is 24112026.

620211420 is a `hidden beast` number, since 620 + 2 + 1 + 1 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 620211393 and 620211402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49995 + ... + 61154.

It is an arithmetic number, because the mean of its divisors is an integer number (26972400).

Almost surely, 2^620211420 is an apocalyptic number.

620211420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620211420 is an abundant number, since it is smaller than the sum of its proper divisors (1321801380).

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

620211420 is a wasteful number, since it uses less digits than its factorization.

620211420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111195 (or 111190 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 620211420 is about 24904.0442498804. The cubic root of 620211420 is about 852.7988110957.

Adding to 620211420 its reverse (24112026), we get a palindrome (644323446).

The spelling of 620211420 in words is "six hundred twenty million, two hundred eleven thousand, four hundred twenty".