423321437 has 24 divisors (see below), whose sum is σ = 568814400. Its totient is φ = 310450560.

The previous prime is 423321377. The next prime is 423321443. The reversal of 423321437 is 734123324.

It is not a de Polignac number, because 423321437 - 2⁶ = 423321373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423321467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13937 + ... + 32262.

It is an arithmetic number, because the mean of its divisors is an integer number (23700600).

Almost surely, 2^423321437 is an apocalyptic number.

It is an amenable number.

423321437 is a deficient number, since it is larger than the sum of its proper divisors (145492963).

423321437 is a wasteful number, since it uses less digits than its factorization.

423321437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46241 (or 46234 counting only the distinct ones).

The product of its digits is 12096, while the sum is 29.

The square root of 423321437 is about 20574.7767181080. The cubic root of 423321437 is about 750.8561701103.

The spelling of 423321437 in words is "four hundred twenty-three million, three hundred twenty-one thousand, four hundred thirty-seven".