423133400 has 96 divisors (see below), whose sum is σ = 1053213840. Its totient is φ = 157532160.

The previous prime is 423133391. The next prime is 423133423. The reversal of 423133400 is 4331324.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329159 + ... + 330441.

Almost surely, 2^423133400 is an apocalyptic number.

423133400 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 423133400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526606920).

423133400 is an abundant number, since it is smaller than the sum of its proper divisors (630080440).

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

423133400 is a wasteful number, since it uses less digits than its factorization.

423133400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 423133400 is about 20570.2066105326. The cubic root of 423133400 is about 750.7449782833.

Adding to 423133400 its reverse (4331324), we get a palindrome (427464724).

The spelling of 423133400 in words is "four hundred twenty-three million, one hundred thirty-three thousand, four hundred".