1089578488 has 32 divisors (see below), whose sum is σ = 2149254000. Its totient is φ = 517081600.

The previous prime is 1089578473. The next prime is 1089578489. The reversal of 1089578488 is 8848759801.

It is a super-2 number, since 2×1089578488² = 2374362563024732288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089578489) 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, 26113 + ... + 53488.

Almost surely, 2^1089578488 is an apocalyptic number.

It is an amenable number.

1089578488 is a deficient number, since it is larger than the sum of its proper divisors (1059675512).

1089578488 is a wasteful number, since it uses less digits than its factorization.

1089578488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79695 (or 79691 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 58.

The square root of 1089578488 is about 33008.7638059955. The cubic root of 1089578488 is about 1029.0097901712.

The spelling of 1089578488 in words is "one billion, eighty-nine million, five hundred seventy-eight thousand, four hundred eighty-eight".