1088542394 has 8 divisors (see below), whose sum is σ = 1638884340. Its totient is φ = 542247616.

The previous prime is 1088542391. The next prime is 1088542451. The reversal of 1088542394 is 4932458801.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 797328169 + 291214225 = 28237^2 + 17065^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1088542391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011119 + ... + 1012194.

Almost surely, 2^1088542394 is an apocalyptic number.

1088542394 is a deficient number, since it is larger than the sum of its proper divisors (550341946).

1088542394 is a wasteful number, since it uses less digits than its factorization.

1088542394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023584.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 1088542394 is about 32993.0658472352. The cubic root of 1088542394 is about 1028.6835205790.

The spelling of 1088542394 in words is "one billion, eighty-eight million, five hundred forty-two thousand, three hundred ninety-four".