233420400 has 120 divisors (see below), whose sum is σ = 830842160. Its totient is φ = 62242560.

The previous prime is 233420357. The next prime is 233420413. The reversal of 233420400 is 4024332.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7 + ... + 21606.

Almost surely, 2^233420400 is an apocalyptic number.

233420400 is a gapful number since it is divisible by the number (20) 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 233420400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415421080).

233420400 is an abundant number, since it is smaller than the sum of its proper divisors (597421760).

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

233420400 is a wasteful number, since it uses less digits than its factorization.

233420400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21640 (or 21623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 233420400 is about 15278.1019763582. The cubic root of 233420400 is about 615.7148142988.

Adding to 233420400 its reverse (4024332), we get a palindrome (237444732).

The spelling of 233420400 in words is "two hundred thirty-three million, four hundred twenty thousand, four hundred".