423021604446 has 24 divisors (see below), whose sum is σ = 1047482068464. Its totient is φ = 120863315520.

The previous prime is 423021604399. The next prime is 423021604501. The reversal of 423021604446 is 644406120324.

423021604446 is a `hidden beast` number, since 4 + 2 + 3 + 0 + 2 + 1 + 604 + 4 + 46 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 423021604446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1678657035 + ... + 1678657286.

It is an arithmetic number, because the mean of its divisors is an integer number (43645086186).

Almost surely, 2^423021604446 is an apocalyptic number.

423021604446 is an abundant number, since it is smaller than the sum of its proper divisors (624460464018).

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

423021604446 is a wasteful number, since it uses less digits than its factorization.

423021604446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357314336 (or 3357314333 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 423021604446 in words is "four hundred twenty-three billion, twenty-one million, six hundred four thousand, four hundred forty-six".