1040255881 has 8 divisors (see below), whose sum is σ = 1189678464. Its totient is φ = 891036960.

The previous prime is 1040255837. The next prime is 1040255893. The reversal of 1040255881 is 1885520401.

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

It is a cyclic number.

It is not a de Polignac number, because 1040255881 - 2⁹ = 1040255369 is a prime.

It is a super-2 number, since 2×1040255881² = 2164264595910172322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040255081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39805 + ... + 60538.

It is an arithmetic number, because the mean of its divisors is an integer number (148709808).

Almost surely, 2^1040255881 is an apocalyptic number.

It is an amenable number.

1040255881 is a deficient number, since it is larger than the sum of its proper divisors (149422583).

1040255881 is a wasteful number, since it uses less digits than its factorization.

1040255881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101831.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 1040255881 is about 32252.9980156884. The cubic root of 1040255881 is about 1013.2424893915.

The spelling of 1040255881 in words is "one billion, forty million, two hundred fifty-five thousand, eight hundred eighty-one".