423738375 has 24 divisors (see below), whose sum is σ = 705764592. Its totient is φ = 225781200.

The previous prime is 423738373. The next prime is 423738409. The reversal of 423738375 is 573837324.

It is not a de Polignac number, because 423738375 - 2¹ = 423738373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423738373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398094 + ... + 399156.

It is an arithmetic number, because the mean of its divisors is an integer number (29406858).

Almost surely, 2^423738375 is an apocalyptic number.

423738375 is a deficient number, since it is larger than the sum of its proper divisors (282026217).

423738375 is an frugal number, since it uses more digits than its factorization.

423738375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 1071 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The square root of 423738375 is about 20584.9064850924. The cubic root of 423738375 is about 751.1026004575.

Multiplying 423738375 by its product of digits (423360), we get a square (179393878440000 = 13393800²).

The spelling of 423738375 in words is "four hundred twenty-three million, seven hundred thirty-eight thousand, three hundred seventy-five".