620423446 has 16 divisors (see below), whose sum is σ = 944233920. Its totient is φ = 305706240.

The previous prime is 620423407. The next prime is 620423509. The reversal of 620423446 is 644324026.

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, 39676 + ... + 53056.

It is an arithmetic number, because the mean of its divisors is an integer number (59014620).

Almost surely, 2^620423446 is an apocalyptic number.

620423446 is a deficient number, since it is larger than the sum of its proper divisors (323810474).

620423446 is a wasteful number, since it uses less digits than its factorization.

620423446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13719.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 620423446 is about 24908.3007449324. The cubic root of 620423446 is about 852.8959795312.

The spelling of 620423446 in words is "six hundred twenty million, four hundred twenty-three thousand, four hundred forty-six".