620106404 has 24 divisors (see below), whose sum is σ = 1139177088. Its totient is φ = 294789440.

The previous prime is 620106379. The next prime is 620106407. The reversal of 620106404 is 404601026.

It is a happy number.

It is a super-2 number, since 2×620106404² = 769063904563622432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 620106404.

It is not an unprimeable number, because it can be changed into a prime (620106407) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4817 + ... + 35544.

It is an arithmetic number, because the mean of its divisors is an integer number (47465712).

Almost surely, 2^620106404 is an apocalyptic number.

It is an amenable number.

620106404 is a deficient number, since it is larger than the sum of its proper divisors (519070684).

620106404 is a wasteful number, since it uses less digits than its factorization.

620106404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40555 (or 40553 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 620106404 is about 24901.9357480498. The cubic root of 620106404 is about 852.7506755878.

The spelling of 620106404 in words is "six hundred twenty million, one hundred six thousand, four hundred four".