423550140240 has 80 divisors (see below), whose sum is σ = 1337779162368. Its totient is φ = 110815630848.

The previous prime is 423550140173. The next prime is 423550140269. The reversal of 423550140240 is 42041055324.

423550140240 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 423550140198 and 423550140207.

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, 16636264 + ... + 16661703.

Almost surely, 2^423550140240 is an apocalyptic number.

423550140240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423550140240 is an abundant number, since it is smaller than the sum of its proper divisors (914229022128).

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

423550140240 is a wasteful number, since it uses less digits than its factorization.

423550140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33298036 (or 33298030 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 423550140240 its reverse (42041055324), we get a palindrome (465591195564).

The spelling of 423550140240 in words is "four hundred twenty-three billion, five hundred fifty million, one hundred forty thousand, two hundred forty".