423232040000 has 280 divisors, whose sum is σ = 1308449512128. Its totient is φ = 131915520000.

The previous prime is 423232039999. The next prime is 423232040027. The reversal of 423232040000 is 40232324.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3011294 + ... + 3148706.

Almost surely, 2^423232040000 is an apocalyptic number.

423232040000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423232040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654224756064).

423232040000 is an abundant number, since it is smaller than the sum of its proper divisors (885217472128).

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

423232040000 is a wasteful number, since it uses less digits than its factorization.

423232040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137463 (or 137438 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 423232040000 its reverse (40232324), we get a palindrome (423272272324).

The spelling of 423232040000 in words is "four hundred twenty-three billion, two hundred thirty-two million, forty thousand".