620406602 has 16 divisors (see below), whose sum is σ = 1011984840. Its totient is φ = 284064768.

The previous prime is 620406587. The next prime is 620406607. The reversal of 620406602 is 206604026.

It can be written as a sum of positive squares in 4 ways, for example, as 529414081 + 90992521 = 23009^2 + 9539^2 .

It is not an unprimeable number, because it can be changed into a prime (620406607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245327 + ... + 247842.

Almost surely, 2^620406602 is an apocalyptic number.

620406602 is a deficient number, since it is larger than the sum of its proper divisors (391578238).

620406602 is a wasteful number, since it uses less digits than its factorization.

620406602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493225.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 620406602 is about 24907.9626224226. The cubic root of 620406602 is about 852.8882609802. Note that the first 3 decimals are identical.

The spelling of 620406602 in words is "six hundred twenty million, four hundred six thousand, six hundred two".