620004006 has 24 divisors (see below), whose sum is σ = 1343992104. Its totient is φ = 206568000.

The previous prime is 620003987. The next prime is 620004013. The reversal of 620004006 is 600400026.

620004006 is a `hidden beast` number, since 620 + 0 + 0 + 40 + 0 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 620004006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36381 + ... + 50631.

It is an arithmetic number, because the mean of its divisors is an integer number (55999671).

Almost surely, 2^620004006 is an apocalyptic number.

620004006 is an abundant number, since it is smaller than the sum of its proper divisors (723988098).

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

620004006 is a wasteful number, since it uses less digits than its factorization.

620004006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16676 (or 16673 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 620004006 is about 24899.8796382633. The cubic root of 620004006 is about 852.7037348424.

The spelling of 620004006 in words is "six hundred twenty million, four thousand, six".