255443430 has 32 divisors (see below), whose sum is σ = 668798208. Its totient is φ = 61925600.

The previous prime is 255443423. The next prime is 255443431. The reversal of 255443430 is 34344552.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255443431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386706 + ... + 387365.

It is an arithmetic number, because the mean of its divisors is an integer number (20899944).

Almost surely, 2^255443430 is an apocalyptic number.

255443430 is an abundant number, since it is smaller than the sum of its proper divisors (413354778).

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

255443430 is a wasteful number, since it uses less digits than its factorization.

255443430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774092.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 255443430 is about 15982.5977237744. The cubic root of 255443430 is about 634.4999307609.

Adding to 255443430 its reverse (34344552), we get a palindrome (289787982).

The spelling of 255443430 in words is "two hundred fifty-five million, four hundred forty-three thousand, four hundred thirty".