423240442001400 has 384 divisors, whose sum is σ = 1327327845580800. Its totient is φ = 111558256473600.

The previous prime is 423240442001359. The next prime is 423240442001437. The reversal of 423240442001400 is 4100244042324.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20534677095 + ... + 20534697705.

It is an arithmetic number, because the mean of its divisors is an integer number (3456582931200).

Almost surely, 2^{423240442001400} is an apocalyptic number.

423240442001400 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 423240442001400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663663922790400).

423240442001400 is an abundant number, since it is smaller than the sum of its proper divisors (904087403579400).

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

423240442001400 is a wasteful number, since it uses less digits than its factorization.

423240442001400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21939 (or 21930 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 423240442001400 its reverse (4100244042324), we get a palindrome (427340686043724).

The spelling of 423240442001400 in words is "four hundred twenty-three trillion, two hundred forty billion, four hundred forty-two million, one thousand, four hundred".