230778420 has 48 divisors (see below), whose sum is σ = 661214400. Its totient is φ = 60109056.

The previous prime is 230778419. The next prime is 230778421. The reversal of 230778420 is 24877032.

It is an interprime number because it is at equal distance from previous prime (230778419) and next prime (230778421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230778421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42145 + ... + 47304.

It is an arithmetic number, because the mean of its divisors is an integer number (13775300).

Almost surely, 2^230778420 is an apocalyptic number.

230778420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230778420 is an abundant number, since it is smaller than the sum of its proper divisors (430435980).

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

230778420 is a wasteful number, since it uses less digits than its factorization.

230778420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89504 (or 89502 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 230778420 is about 15191.3929578561. The cubic root of 230778420 is about 613.3829952174.

The spelling of 230778420 in words is "two hundred thirty million, seven hundred seventy-eight thousand, four hundred twenty".