8881240 has 32 divisors (see below), whose sum is σ = 20088000. Its totient is φ = 3533824.

The previous prime is 8881231. The next prime is 8881241. The reversal of 8881240 is 421888.

8881240 = 61² + 62² + ... + 299².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8881241) 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, 9096 + ... + 10024.

It is an arithmetic number, because the mean of its divisors is an integer number (627750).

Almost surely, 2^8881240 is an apocalyptic number.

It is an amenable number.

8881240 is an abundant number, since it is smaller than the sum of its proper divisors (11206760).

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

8881240 is a wasteful number, since it uses less digits than its factorization.

8881240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 8881240 is about 2980.1409362646. The cubic root of 8881240 is about 207.0893994888.

The spelling of 8881240 in words is "eight million, eight hundred eighty-one thousand, two hundred forty".