881255240 has 32 divisors (see below), whose sum is σ = 1997309880. Its totient is φ = 349926912.

The previous prime is 881255237. The next prime is 881255261. The reversal of 881255240 is 42552188.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 492928804 + 388326436 = 22202^2 + 19706^2 .

It is a super-2 number, since 2×881255240² = 1553221596054915200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 881255240.

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 7 ways as a sum of consecutive naturals, for example, 74927 + ... + 85886.

Almost surely, 2^881255240 is an apocalyptic number.

It is an amenable number.

881255240 is an abundant number, since it is smaller than the sum of its proper divisors (1116054640).

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

881255240 is a wasteful number, since it uses less digits than its factorization.

881255240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160961 (or 160957 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 881255240 is about 29685.9434749849. The cubic root of 881255240 is about 958.7393899329.

The spelling of 881255240 in words is "eight hundred eighty-one million, two hundred fifty-five thousand, two hundred forty".