1089764370 has 24 divisors (see below), whose sum is σ = 2833387596. Its totient is φ = 290603808.

The previous prime is 1089764341. The next prime is 1089764371. The reversal of 1089764370 is 734679801.

It can be written as a sum of positive squares in 2 ways, for example, as 1088802009 + 962361 = 32997^2 + 981^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1089764371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6054157 + ... + 6054336.

Almost surely, 2^1089764370 is an apocalyptic number.

1089764370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1089764370 is an abundant number, since it is smaller than the sum of its proper divisors (1743623226).

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

1089764370 is a wasteful number, since it uses less digits than its factorization.

1089764370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12108506 (or 12108503 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1089764370 is about 33011.5793321071. The cubic root of 1089764370 is about 1029.0683031723.

The spelling of 1089764370 in words is "one billion, eighty-nine million, seven hundred sixty-four thousand, three hundred seventy".