423420243040 has 96 divisors (see below), whose sum is σ = 1074982303584. Its totient is φ = 157026017280.

The previous prime is 423420242981. The next prime is 423420243047. The reversal of 423420243040 is 40342024324.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423420243047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979471 + ... + 1343950.

It is an arithmetic number, because the mean of its divisors is an integer number (11197732329).

Almost surely, 2^423420243040 is an apocalyptic number.

423420243040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423420243040 is an abundant number, since it is smaller than the sum of its proper divisors (651562060544).

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

423420243040 is a wasteful number, since it uses less digits than its factorization.

423420243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323520 (or 2323512 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 423420243040 its reverse (40342024324), we get a palindrome (463762267364).

The spelling of 423420243040 in words is "four hundred twenty-three billion, four hundred twenty million, two hundred forty-three thousand, forty".