423420244304240 has 80 divisors (see below), whose sum is σ = 1011359636090496. Its totient is φ = 164770223520000.

The previous prime is 423420244304227. The next prime is 423420244304243. The reversal of 423420244304240 is 42403442024324.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 423420244304194 and 423420244304203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423420244304243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 244330346 + ... + 246057225.

Almost surely, 2^{423420244304240} is an apocalyptic number.

423420244304240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423420244304240 is an abundant number, since it is smaller than the sum of its proper divisors (587939391786256).

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

423420244304240 is a wasteful number, since it uses less digits than its factorization.

423420244304240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490387878 (or 490387872 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 38.

Adding to 423420244304240 its reverse (42403442024324), we get a palindrome (465823686328564).

The spelling of 423420244304240 in words is "four hundred twenty-three trillion, four hundred twenty billion, two hundred forty-four million, three hundred four thousand, two hundred forty".