1255854240 has 96 divisors (see below), whose sum is σ = 4395504960. Its totient is φ = 334893312.

The previous prime is 1255854217. The next prime is 1255854253. The reversal of 1255854240 is 424585521.

1255854240 is a `hidden beast` number, since 1 + 25 + 58 + 542 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1255854195 and 1255854204.

It is an unprimeable number.

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, 141034 + ... + 149673.

It is an arithmetic number, because the mean of its divisors is an integer number (45786510).

Almost surely, 2^1255854240 is an apocalyptic number.

1255854240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255854240 is an abundant number, since it is smaller than the sum of its proper divisors (3139650720).

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

1255854240 is a wasteful number, since it uses less digits than its factorization.

1255854240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290731 (or 290717 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 1255854240 is about 35438.0338055034. The cubic root of 1255854240 is about 1078.8964035398.

The spelling of 1255854240 in words is "one billion, two hundred fifty-five million, eight hundred fifty-four thousand, two hundred forty".