423403544 has 16 divisors (see below), whose sum is σ = 797874000. Its totient is φ = 210637152.

The previous prime is 423403537. The next prime is 423403583. The reversal of 423403544 is 445304324.

It is a super-2 number, since 2×423403544² = 358541122143519872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131387 + ... + 134570.

It is an arithmetic number, because the mean of its divisors is an integer number (49867125).

Almost surely, 2^423403544 is an apocalyptic number.

It is an amenable number.

423403544 is a deficient number, since it is larger than the sum of its proper divisors (374470456).

423403544 is a wasteful number, since it uses less digits than its factorization.

423403544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266162 (or 266158 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 423403544 is about 20576.7719528599. The cubic root of 423403544 is about 750.9047120744.

Adding to 423403544 its reverse (445304324), we get a palindrome (868707868).

The spelling of 423403544 in words is "four hundred twenty-three million, four hundred three thousand, five hundred forty-four".