1089337940 has 48 divisors (see below), whose sum is σ = 2312755200. Its totient is φ = 430974720.

The previous prime is 1089337913. The next prime is 1089337981. The reversal of 1089337940 is 497339801.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1089337891 and 1089337900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759464 + ... + 760896.

It is an arithmetic number, because the mean of its divisors is an integer number (48182400).

Almost surely, 2^1089337940 is an apocalyptic number.

1089337940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089337940 is an abundant number, since it is smaller than the sum of its proper divisors (1223417260).

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

1089337940 is a wasteful number, since it uses less digits than its factorization.

1089337940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1089337940 is about 33005.1199058570. The cubic root of 1089337940 is about 1028.9340592143.

The spelling of 1089337940 in words is "one billion, eighty-nine million, three hundred thirty-seven thousand, nine hundred forty".