423929545 has 16 divisors (see below), whose sum is σ = 561213072. Its totient is φ = 305418240.

The previous prime is 423929533. The next prime is 423929551. The reversal of 423929545 is 545929324.

It can be written as a sum of positive squares in 8 ways, for example, as 43718544 + 380211001 = 6612^2 + 19499^2 .

It is not a de Polignac number, because 423929545 - 2⁷ = 423929417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 76872 + ... + 82201.

It is an arithmetic number, because the mean of its divisors is an integer number (35075817).

Almost surely, 2^423929545 is an apocalyptic number.

It is an amenable number.

423929545 is a deficient number, since it is larger than the sum of its proper divisors (137283527).

423929545 is a wasteful number, since it uses less digits than its factorization.

423929545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159132.

The product of its digits is 388800, while the sum is 43.

The square root of 423929545 is about 20589.5494122625. The cubic root of 423929545 is about 751.2155370435.

The spelling of 423929545 in words is "four hundred twenty-three million, nine hundred twenty-nine thousand, five hundred forty-five".