1089342381 has 8 divisors (see below), whose sum is σ = 1469956320. Its totient is φ = 717478352.

The previous prime is 1089342377. The next prime is 1089342383. The reversal of 1089342381 is 1832439801.

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 1089342381 - 2² = 1089342377 is a prime.

It is a super-2 number, since 2×1089342381² = 2373333646085498322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089342383) 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, 2187186 + ... + 2187683.

It is an arithmetic number, because the mean of its divisors is an integer number (183744540).

Almost surely, 2^1089342381 is an apocalyptic number.

It is an amenable number.

1089342381 is a deficient number, since it is larger than the sum of its proper divisors (380613939).

1089342381 is an equidigital number, since it uses as much as digits as its factorization.

1089342381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374955.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1089342381 is about 33005.1871832292. The cubic root of 1089342381 is about 1028.9354574611.

The spelling of 1089342381 in words is "one billion, eighty-nine million, three hundred forty-two thousand, three hundred eighty-one".