1089456 has 20 divisors (see below), whose sum is σ = 2814552. Its totient is φ = 363136.

The previous prime is 1089427. The next prime is 1089457. The reversal of 1089456 is 6549801.

1089456 = T₃₆₁ + T₃₆₂ + ... + T₃₇₆.

It is not an unprimeable number, because it can be changed into a prime (1089457) 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, 11301 + ... + 11396.

2^1089456 is an apocalyptic number.

1089456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1089456 is an abundant number, since it is smaller than the sum of its proper divisors (1725096).

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

1089456 is a wasteful number, since it uses less digits than its factorization.

1089456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22708 (or 22702 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1089456 is about 1043.7700896270. The cubic root of 1089456 is about 102.8971229059.

The spelling of 1089456 in words is "one million, eighty-nine thousand, four hundred fifty-six".