9089019040 has 36 divisors (see below), whose sum is σ = 21475656846. Its totient is φ = 3635125248.

The previous prime is 9089019013. The next prime is 9089019047. The reversal of 9089019040 is 409109809.

It can be written as a sum of positive squares in 3 ways, for example, as 6739096464 + 2349922576 = 82092^2 + 48476^2 .

It is a super-2 number, since 2×9089019040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 9089018984 and 9089019002.

It is not an unprimeable number, because it can be changed into a prime (9089019047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1202152 + ... + 1209688.

Almost surely, 2^9089019040 is an apocalyptic number.

It is an amenable number.

9089019040 is an abundant number, since it is smaller than the sum of its proper divisors (12386637806).

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

9089019040 is an frugal number, since it uses more digits than its factorization.

9089019040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15089 (or 7544 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 9089019040 is about 95336.3468987563. The cubic root of 9089019040 is about 2086.9193749658.

Multiplying 9089019040 by its sum of digits (40), we get a square (363560761600 = 602960²).

9089019040 divided by its sum of digits (40) gives a square (227225476 = 15074²).

The spelling of 9089019040 in words is "nine billion, eighty-nine million, nineteen thousand, forty".