620042224 has 20 divisors (see below), whose sum is σ = 1271998944. Its totient is φ = 291784448.

The previous prime is 620042201. The next prime is 620042231. The reversal of 620042224 is 422240026.

It is a junction number, because it is equal to n+sod(n) for n = 620042195 and 620042204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139512 + ... + 1140055.

Almost surely, 2^620042224 is an apocalyptic number.

It is an amenable number.

620042224 is an abundant number, since it is smaller than the sum of its proper divisors (651956720).

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

620042224 is a wasteful number, since it uses less digits than its factorization.

620042224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279592 (or 2279586 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 620042224 is about 24900.6470598657. The cubic root of 620042224 is about 852.7212551387.

The spelling of 620042224 in words is "six hundred twenty million, forty-two thousand, two hundred twenty-four".