11509490 has 8 divisors (see below), whose sum is σ = 20717100. Its totient is φ = 4603792.

The previous prime is 11509489. The next prime is 11509567. The reversal of 11509490 is 9490511.

It can be written as a sum of positive squares in 2 ways, for example, as 11498881 + 10609 = 3391^2 + 103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575465 + ... + 575484.

Almost surely, 2^11509490 is an apocalyptic number.

11509490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11509490 is a deficient number, since it is larger than the sum of its proper divisors (9207610).

11509490 is a wasteful number, since it uses less digits than its factorization.

11509490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150956.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 11509490 is about 3392.5639271796. The cubic root of 11509490 is about 225.7799434737.

The spelling of 11509490 in words is "eleven million, five hundred nine thousand, four hundred ninety".