620406622 has 16 divisors (see below), whose sum is σ = 1015871472. Its totient is φ = 281819520.

The previous prime is 620406613. The next prime is 620406637. The reversal of 620406622 is 226604026.

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, 28918 + ... + 45574.

It is an arithmetic number, because the mean of its divisors is an integer number (63491967).

Almost surely, 2^620406622 is an apocalyptic number.

620406622 is a deficient number, since it is larger than the sum of its proper divisors (395464850).

620406622 is a wasteful number, since it uses less digits than its factorization.

620406622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18363.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 620406622 is about 24907.9630239006. The cubic root of 620406622 is about 852.8882701451. Note that the first 3 decimals are identical.

The spelling of 620406622 in words is "six hundred twenty million, four hundred six thousand, six hundred twenty-two".