230621400 has 144 divisors (see below), whose sum is σ = 799680960. Its totient is φ = 59500800.

The previous prime is 230621389. The next prime is 230621423. The reversal of 230621400 is 4126032.

It is a happy number.

230621400 is a `hidden beast` number, since 2 + 3 + 0 + 621 + 40 + 0 = 666.

230621400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 35 ways as a sum of consecutive naturals, for example, 53734 + ... + 57866.

It is an arithmetic number, because the mean of its divisors is an integer number (5553340).

Almost surely, 2^230621400 is an apocalyptic number.

230621400 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 230621400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399840480).

230621400 is an abundant number, since it is smaller than the sum of its proper divisors (569059560).

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

230621400 is a wasteful number, since it uses less digits than its factorization.

230621400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186 (or 4174 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 230621400 is about 15186.2240204733. The cubic root of 230621400 is about 613.2438498417.

Adding to 230621400 its reverse (4126032), we get a palindrome (234747432).

The spelling of 230621400 in words is "two hundred thirty million, six hundred twenty-one thousand, four hundred".