255234040 has 32 divisors (see below), whose sum is σ = 577017360. Its totient is φ = 101606400.

The previous prime is 255234037. The next prime is 255234053. The reversal of 255234040 is 40432552.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 255233996 and 255234014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6681 + ... + 23560.

Almost surely, 2^255234040 is an apocalyptic number.

255234040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255234040 is an abundant number, since it is smaller than the sum of its proper divisors (321783320).

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

255234040 is a wasteful number, since it uses less digits than its factorization.

255234040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30463 (or 30459 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 255234040 is about 15976.0458186624. The cubic root of 255234040 is about 634.3265143365.

Adding to 255234040 its reverse (40432552), we get a palindrome (295666592).

The spelling of 255234040 in words is "two hundred fifty-five million, two hundred thirty-four thousand, forty".