423344330040 has 32 divisors (see below), whose sum is σ = 1270032990480. Its totient is φ = 112891821312.

The previous prime is 423344330039. The next prime is 423344330093. The reversal of 423344330040 is 40033443324.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1763934589 + ... + 1763934828.

Almost surely, 2^423344330040 is an apocalyptic number.

423344330040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423344330040 is an abundant number, since it is smaller than the sum of its proper divisors (846688660440).

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

423344330040 is a wasteful number, since it uses less digits than its factorization.

423344330040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527869431 (or 3527869427 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 30.

Adding to 423344330040 its reverse (40033443324), we get a palindrome (463377773364).

The spelling of 423344330040 in words is "four hundred twenty-three billion, three hundred forty-four million, three hundred thirty thousand, forty".