1240894255 has 8 divisors (see below), whose sum is σ = 1492530624. Its totient is φ = 990410400.

The previous prime is 1240894241. The next prime is 1240894261. The reversal of 1240894255 is 5524980421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240894255 - 2¹¹ = 1240892207 is a prime.

It is a Duffinian number.

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, 285756 + ... + 290065.

It is an arithmetic number, because the mean of its divisors is an integer number (186566328).

Almost surely, 2^1240894255 is an apocalyptic number.

1240894255 is a deficient number, since it is larger than the sum of its proper divisors (251636369).

1240894255 is an equidigital number, since it uses as much as digits as its factorization.

1240894255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576257.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1240894255 is about 35226.3290026083. The cubic root of 1240894255 is about 1074.5952700316.

The spelling of 1240894255 in words is "one billion, two hundred forty million, eight hundred ninety-four thousand, two hundred fifty-five".