1088939862 has 72 divisors (see below), whose sum is σ = 2599481976. Its totient is φ = 341584128.

The previous prime is 1088939861. The next prime is 1088939867. The reversal of 1088939862 is 2689398801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1088939799 and 1088939808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1088939861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 136578 + ... + 144330.

Almost surely, 2^1088939862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1088939862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299740988).

1088939862 is an abundant number, since it is smaller than the sum of its proper divisors (1510542114).

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

1088939862 is an equidigital number, since it uses as much as digits as its factorization.

1088939862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7804 (or 7775 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 1088939862 is about 32999.0888056019. The cubic root of 1088939862 is about 1028.8087090970.

It can be divided in two parts, 1088939 and 862, that added together give a palindrome (1089801).

The spelling of 1088939862 in words is "one billion, eighty-eight million, nine hundred thirty-nine thousand, eight hundred sixty-two".