423153340440 has 64 divisors (see below), whose sum is σ = 1269519838560. Its totient is φ = 112835573760.

The previous prime is 423153340399. The next prime is 423153340469. The reversal of 423153340440 is 44043351324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2926650 + ... + 3067830.

Almost surely, 2^423153340440 is an apocalyptic number.

423153340440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423153340440 is an abundant number, since it is smaller than the sum of its proper divisors (846366498120).

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

423153340440 is a wasteful number, since it uses less digits than its factorization.

423153340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166172 (or 166168 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 423153340440 its reverse (44043351324), we get a palindrome (467196691764).

The spelling of 423153340440 in words is "four hundred twenty-three billion, one hundred fifty-three million, three hundred forty thousand, four hundred forty".